Three workloads, priced at list rates

A · 1,000 short tasks

$1.21

2/4: 2 vCPU / 4 GiB / 10 GiB (plan: Cloud API wallet)

• CPU166.67 h × 2 vCPU × $0.001096$0.37
• Memory166.67 h × 4 GiB × $0.0009589$0.64
• Disk while running166.67 h × 10 GiB × $0.0001233$0.21

• Creating an instance needs one day of its running cost in the wallet.
• Stopping loses memory; a sleep checkpoint keeps it at no extra charge.
• The managed personal-agent plans ($3.99 to $99.99 a month) are a separate product and are not priced here.
• Egress is not published.

B · One always-on box

$30.10

4/32: 4 vCPU / 32 GiB / 50 GiB (plan: Cloud API wallet)

• CPU730 h × 4 vCPU × $0.001096$3.20
• Memory730 h × 32 GiB × $0.0009589$22.40
• Disk while running730 h × 50 GiB × $0.0001233$4.50

• Creating an instance needs one day of its running cost in the wallet.
• Stopping loses memory; a sleep checkpoint keeps it at no extra charge.
• The managed personal-agent plans ($3.99 to $99.99 a month) are a separate product and are not priced here.
• Egress is not published.

C · Three hours a day

$2.88

4/8: 4 vCPU / 8 GiB / 20 GiB (plan: Cloud API wallet)

• CPU90 h × 4 vCPU × $0.001096$0.39
• Memory90 h × 8 GiB × $0.0009589$0.69
• Disk while running90 h × 20 GiB × $0.0001233$0.22
• Disk while stopped640 h × 20 GiB × $0.0001233$1.58

• Creating an instance needs one day of its running cost in the wallet.
• Stopping loses memory; a sleep checkpoint keeps it at no extra charge.
• The managed personal-agent plans ($3.99 to $99.99 a month) are a separate product and are not priced here.
• Egress is not published.

A · 1,000 short tasks

$27.60

2 vCPU / 4 GiB / 10 GiB (plan: Pay as you go)

• Memory166.67 h × 4 GiB × $0.0414$27.60

• Standby keeps a snapshot, billed at $0.20 per GB-month; its size is not published, so it is not added.
• Up to $200 of promotional credit is advertised; the actual grant is not published.

B · One always-on box

$247.78

4 vCPU / 8 GiB / 50 GiB (plan: Pay as you go)

• Memory730 h × 8 GiB × $0.0414$241.78
• Kept disk (volume)1 × 50 GiB × $0.12 a month$6.00

• Standby keeps a snapshot, billed at $0.20 per GB-month; its size is not published, so it is not added.
• Up to $200 of promotional credit is advertised; the actual grant is not published.

C · Three hours a day

$17.30

2 vCPU / 4 GiB / 20 GiB (plan: Pay as you go)

• Memory90 h × 4 GiB × $0.0414$14.90
• Kept disk (volume)1 × 20 GiB × $0.12 a month$2.40

• Standby keeps a snapshot, billed at $0.20 per GB-month; its size is not published, so it is not added.
• Up to $200 of promotional credit is advertised; the actual grant is not published.

A · 1,000 short tasks

$20.00

small: 2 vCPU / 4 GiB / 51 GiB (plan: $20 plan)

• Machine time (small)166.67 h × $0.018$3.00

• $20 plan: $20.00 plan, $20.00 of usage included.
• Usage over the plan is drawn from a separate wallet.
• A stopped machine's disk is kept free for 14 days; after that it is gone unless saved as a snapshot.
• Many starts in one day can hit the start limit; paid starts draw from the wallet.
• No free tier; the 7-day trial needs a card.
• Boat says it does not bill egress.

B · One always-on box

$26.28

default: 4 vCPU / 8 GiB / 51 GiB (plan: $20 plan)

• Machine time (default)730 h × $0.036$26.28

• $20 plan: $20.00 plan, $20.00 of usage included, $6.28 over.
• Usage over the plan is drawn from a separate wallet.
• A stopped machine's disk is kept free for 14 days; after that it is gone unless saved as a snapshot.
• Many starts in one day can hit the start limit; paid starts draw from the wallet.
• No free tier; the 7-day trial needs a card.
• Boat says it does not bill egress.

C · Three hours a day

$20.00

small: 2 vCPU / 4 GiB / 51 GiB (plan: $20 plan)

• Machine time (small)90 h × $0.018$1.62

• $20 plan: $20.00 plan, $20.00 of usage included.
• Usage over the plan is drawn from a separate wallet.
• A stopped machine's disk is kept free for 14 days; after that it is gone unless saved as a snapshot.
• Many starts in one day can hit the start limit; paid starts draw from the wallet.
• No free tier; the 7-day trial needs a card.
• Boat says it does not bill egress.

A · 1,000 short tasks

$25.16

2/8: 2 vCPU / 8 GiB / 10 GiB (plan: Prepaid credit)

• CPU166.67 h × 2 vCPU × $0.047$15.67
• Memory166.67 h × 4 GiB × $0.014$9.33
• Disk while running166.67 h × 10 GiB × $0.000096$0.16

• Memory is billed on resident memory; the calculator uses the memory you entered as the resident figure, up to the size's full allocation.
• $30 of credit needs a card; without one an account is capped at two machines.
• Egress and snapshot storage prices are not published, so neither is included.

B · One always-on box

$222.50

4/16: 4 vCPU / 16 GiB / 50 GiB (plan: Prepaid credit)

• CPU730 h × 4 vCPU × $0.047$137.24
• Memory730 h × 8 GiB × $0.014$81.76
• Disk while running730 h × 50 GiB × $0.000096$3.50

• Memory is billed on resident memory; the calculator uses the memory you entered as the resident figure, up to the size's full allocation.
• $30 of credit needs a card; without one an account is capped at two machines.
• Egress and snapshot storage prices are not published, so neither is included.

C · Three hours a day

$14.90

2/8: 2 vCPU / 8 GiB / 20 GiB (plan: Prepaid credit)

• CPU90 h × 2 vCPU × $0.047$8.46
• Memory90 h × 4 GiB × $0.014$5.04
• Disk while running90 h × 20 GiB × $0.000096$0.17
• Disk while stopped640 h × 20 GiB × $0.000096$1.23

• Memory is billed on resident memory; the calculator uses the memory you entered as the resident figure, up to the size's full allocation.
• $30 of credit needs a card; without one an account is capped at two machines.
• Egress and snapshot storage prices are not published, so neither is included.

A · 1,000 short tasks

$28.95

standard-3: 2 vCPU / 8 GiB / 16 GiB (plan: Workers Paid)

• CPU, while working166.67 h × 1 vCPU busy × $0.072$12.00
• Memory166.67 h × 8 GiB × $0.009$12.00
• Disk while running166.67 h × 16 GiB × $0.000252$0.67
• Included in the plan−6.25 vCPU-h × $0.072$-0.45
• Included in the plan−25 GiB-h × $0.009$-0.22
• Included in the plan−200 GB-h × $0.000252$-0.05

• Workers Paid: $5.00 plan, $23.95 over.
• Egress is $0.025 per GB in North America and Europe and is not included.
• Workers, Durable Objects and R2 usage are billed separately.

B · One always-on box

$107.82, with a catch

standard-4: 4 vCPU / 12 GiB / 20 GiB (plan: Workers Paid)

• CPU, while working730 h × 0.4 vCPU busy × $0.072$21.02
• Memory730 h × 12 GiB × $0.009$78.84
• Disk while running730 h × 20 GiB × $0.000252$3.68
• Included in the plan−6.25 vCPU-h × $0.072$-0.45
• Included in the plan−25 GiB-h × $0.009$-0.22
• Included in the plan−200 GB-h × $0.000252$-0.05

• Workers Paid: $5.00 plan, $102.82 over.
• Egress is $0.025 per GB in North America and Europe and is not included.
• Workers, Durable Objects and R2 usage are billed separately.

It cannot run this exactly as described: No size with 4 vCPU allows 50 GiB of disk; the most is 20 GiB on standard-4. A stopped instance loses its disk; files have to be backed up to R2 or a snapshot and restored.

C · Three hours a day

$17.04, with a catch

standard-4: 4 vCPU / 12 GiB / 20 GiB (plan: Workers Paid)

• CPU, while working90 h × 0.4 vCPU busy × $0.072$2.59
• Memory90 h × 12 GiB × $0.009$9.72
• Disk while running90 h × 20 GiB × $0.000252$0.45
• Included in the plan−6.25 vCPU-h × $0.072$-0.45
• Included in the plan−25 GiB-h × $0.009$-0.22
• Included in the plan−200 GB-h × $0.000252$-0.05

• Workers Paid: $5.00 plan, $12.04 over.
• Egress is $0.025 per GB in North America and Europe and is not included.
• Workers, Durable Objects and R2 usage are billed separately.

It cannot run this exactly as described: A stopped instance loses its disk; files have to be backed up to R2 or a snapshot and restored.

A · 1,000 short tasks

$27.69

2 vCPU / 4 GiB / 10 GiB (plan: Pay as you go)

• CPU166.67 h × 2 vCPU × $0.0504$16.80
• Memory166.67 h × 4 GiB × $0.0162$10.80
• Disk while running166.67 h × 5 GiB (after 5 free) × $0.000108$0.09

• $200 of free compute with no card, not usable on GPU sandboxes.
• The 10 GiB per-sandbox disk cap contradicts 50 GiB Windows presets; the cap is applied here.

B · One always-on box

$245.32, with a catch

4 vCPU / 8 GiB / 50 GiB (plan: Pay as you go)

• CPU730 h × 4 vCPU × $0.0504$147.17
• Memory730 h × 8 GiB × $0.0162$94.61
• Disk while running730 h × 45 GiB (after 5 free) × $0.000108$3.55

• $200 of free compute with no card, not usable on GPU sandboxes.
• The 10 GiB per-sandbox disk cap contradicts 50 GiB Windows presets; the cap is applied here.

It cannot run this exactly as described: 50 GiB of disk is over the 10 GiB limit.

C · Three hours a day

$16.09, with a catch

2 vCPU / 4 GiB / 20 GiB (plan: Pay as you go)

• CPU90 h × 2 vCPU × $0.0504$9.07
• Memory90 h × 4 GiB × $0.0162$5.83
• Disk while running90 h × 15 GiB (after 5 free) × $0.000108$0.15
• Disk while stopped640 h × 15 GiB × $0.000108$1.04

• $200 of free compute with no card, not usable on GPU sandboxes.
• The 10 GiB per-sandbox disk cap contradicts 50 GiB Windows presets; the cap is applied here.

It cannot run this exactly as described: 20 GiB of disk is over the 10 GiB limit.

A · 1,000 short tasks

$27.60

2 vCPU / 4 GiB / 10 GiB (plan: Hobby)

• CPU166.67 h × 2 vCPU × $0.0504$16.80
• Memory166.67 h × 4 GiB × $0.0162$10.80

• Hobby starts with a one-time $100 credit, not subtracted here.
• Pausing keeps memory and files at no charge; volumes and snapshots are separate.
• Sandbox storage is included at no extra cost, up to 10 GiB on Hobby and 20 GiB on Pro.

B · One always-on box

$241.78, with a catch

4 vCPU / 8 GiB / 50 GiB (plan: Hobby)

• CPU730 h × 4 vCPU × $0.0504$147.17
• Memory730 h × 8 GiB × $0.0162$94.61

• Hobby starts with a one-time $100 credit, not subtracted here.
• Pausing keeps memory and files at no charge; volumes and snapshots are separate.
• Sandbox storage is included at no extra cost, up to 10 GiB on Hobby and 20 GiB on Pro.

It cannot run this exactly as described: 50 GiB of disk is over the 10 GiB limit. Sessions end after 1 hour, so an always-on machine has to be restarted by your own code.

C · Three hours a day

$164.90

2 vCPU / 4 GiB / 20 GiB (plan: Pro)

• CPU90 h × 2 vCPU × $0.0504$9.07
• Memory90 h × 4 GiB × $0.0162$5.83

• Pro: $150.00 plan, $14.90 over.
• Pausing keeps memory and files at no charge; volumes and snapshots are separate.
• Sandbox storage is included at no extra cost, up to 10 GiB on Hobby and 20 GiB on Pro.

A · 1,000 short tasks

$20.00

2 vCPU / 4 GiB / 10 GiB (plan: Pro)

• CPU166.67 h × 2 vCPU × $0.004$1.33
• Memory166.67 h × 4 GiB × $0.00225$1.50
• Disk while running166.67 h × 10 GiB × $0.00011$0.18

• Pro: $20.00 plan, $20.00 of usage included.
• The free plan is one 4 vCPU / 8 GiB machine that pauses after 30 idle minutes; it is not priced here.
• Egress is $0.02 per GiB and is not included.

B · One always-on box

$28.84

4 vCPU / 8 GiB / 50 GiB (plan: Pro)

• CPU730 h × 4 vCPU × $0.004$11.68
• Memory730 h × 8 GiB × $0.00225$13.14
• Disk while running730 h × 50 GiB × $0.00011$4.02

• Pro: $20.00 plan, $20.00 of usage included, $8.84 over.
• The free plan is one 4 vCPU / 8 GiB machine that pauses after 30 idle minutes; it is not priced here.
• Egress is $0.02 per GiB and is not included.

C · Three hours a day

$20.00

2 vCPU / 4 GiB / 20 GiB (plan: Pro)

• CPU90 h × 2 vCPU × $0.004$0.72
• Memory90 h × 4 GiB × $0.00225$0.81
• Disk while running90 h × 20 GiB × $0.00011$0.20
• Disk while stopped640 h × 20 GiB × $0.00011$1.41

• Pro: $20.00 plan, $20.00 of usage included.
• The free plan is one 4 vCPU / 8 GiB machine that pauses after 30 idle minutes; it is not priced here.
• Egress is $0.02 per GiB and is not included.

A · 1,000 short tasks

$19.00

Small: 2 vCPU / 4 GiB / 5 GiB + 5 GiB volume (plan: Pro)

• Machine time (Small)166.67 h × $0.0162$2.70
• Extra disk (volume)5 GiB × $0.14 a month × 0.23 machine-months$0.16

• Pro: $19.00 plan, $19.00 of usage included.
• Between sessions the machine is paused, not stopped: a stopped sandbox is deleted. No storage charge for a paused sandbox is published.
• Extra disk is a volume at $0.14 per GB-month of used space.
• Sandbox egress is included up to 2 TB per rolling 30 days; the price beyond that is not published.
• Pro 5x ($99) and Pro 20x ($499) include the same amount of usage as their fee and raise the sandbox limits; they never lower a bill, so the calculator lands on Pro unless you need the higher limits.

B · One always-on box

$27.85

Medium: 4 vCPU / 8 GiB / 20 GiB + 30 GiB volume (plan: Pro)

• Machine time (Medium)730 h × $0.0324$23.65
• Extra disk (volume)30 GiB × $0.14 a month × 1$4.20

• Pro: $19.00 plan, $19.00 of usage included, $8.85 over.
• Between sessions the machine is paused, not stopped: a stopped sandbox is deleted. No storage charge for a paused sandbox is published.
• Extra disk is a volume at $0.14 per GB-month of used space.
• Sandbox egress is included up to 2 TB per rolling 30 days; the price beyond that is not published.
• Pro 5x ($99) and Pro 20x ($499) include the same amount of usage as their fee and raise the sandbox limits; they never lower a bill, so the calculator lands on Pro unless you need the higher limits.

C · Three hours a day

$19.00

Small: 2 vCPU / 4 GiB / 5 GiB + 15 GiB volume (plan: Pro)

• Machine time (Small)90 h × $0.0162$1.46
• Extra disk (volume)15 GiB × $0.14 a month × 1$2.10

• Pro: $19.00 plan, $19.00 of usage included.
• Between sessions the machine is paused, not stopped: a stopped sandbox is deleted. No storage charge for a paused sandbox is published.
• Extra disk is a volume at $0.14 per GB-month of used space.
• Sandbox egress is included up to 2 TB per rolling 30 days; the price beyond that is not published.
• Pro 5x ($99) and Pro 20x ($499) include the same amount of usage as their fee and raise the sandbox limits; they never lower a bill, so the calculator lands on Pro unless you need the higher limits.

A · 1,000 short tasks

$9.66

2 vCPU / 4 GiB / 10 GiB (plan: Starter)

• CPU166.67 h × 2 vCPU × $0.07096$23.65
• Memory166.67 h × 4 GiB × $0.02401$16.01

• Starter: $0.00 plan, $30.00 of usage included, $9.66 over.
• Modal bills per physical core and documents one core as 2 vCPUs, so a vCPU here is half a core. Battleships prices a whole core as one vCPU, twice this figure. How many CPUs the machine itself reports per core was not tested.
• A payment method is required.
• Egress beyond the plan's included amount is $0.04 per GiB and is not included.

B · One always-on box

$317.42, with a catch

4 vCPU / 8 GiB / 50 GiB (plan: Starter)

• CPU730 h × 4 vCPU × $0.07096$207.19
• Memory730 h × 8 GiB × $0.02401$140.23

• Starter: $0.00 plan, $30.00 of usage included, $317.42 over.
• Modal bills per physical core and documents one core as 2 vCPUs, so a vCPU here is half a core. Battleships prices a whole core as one vCPU, twice this figure. How many CPUs the machine itself reports per core was not tested.
• A payment method is required.
• Egress beyond the plan's included amount is $0.04 per GiB and is not included.

It cannot run this exactly as described: Sessions end after 24 hours, so an always-on machine has to be restarted by your own code. Modal sandboxes have no stopped state; keeping files needs a Volume or a snapshot.

C · Three hours a day

$0.00, with a catch

2 vCPU / 4 GiB / 20 GiB (plan: Starter)

• CPU90 h × 2 vCPU × $0.07096$12.77
• Memory90 h × 4 GiB × $0.02401$8.64

• Starter: $0.00 plan, $30.00 of usage included.
• Modal bills per physical core and documents one core as 2 vCPUs, so a vCPU here is half a core. Battleships prices a whole core as one vCPU, twice this figure. How many CPUs the machine itself reports per core was not tested.
• A payment method is required.
• Egress beyond the plan's included amount is $0.04 per GiB and is not included.

It cannot run this exactly as described: Modal sandboxes have no stopped state; keeping files needs a Volume or a snapshot.

A · 1,000 short tasks

$16.67

2 vCPU / 4 GiB / 10 GiB (plan: Developer)

• Compute units166.67 h × max(1, 2, ⌈4/4⌉, ⌈10/16⌉) = 333.33 units × $0.05$16.67

• Between sessions the instance is paused: it bills only for its snapshot. A stopped instance is deleted.
• Live pages disagree on the free tier: 0 units on the pricing page, 300 units in the plans doc, 300 compute hours on the sign-up page. None is subtracted.

B · One always-on box

$136.00

4 vCPU / 8 GiB / 50 GiB (plan: Team)

• Compute units730 h × max(1, 4, ⌈8/4⌉, ⌈50/16⌉) = 2,920 units × $0.05$146.00

• Team: $40.00 plan, $50.00 of usage included, $96.00 over.
• Between sessions the instance is paused: it bills only for its snapshot. A stopped instance is deleted.
• Live pages disagree on the free tier: 0 units on the pricing page, 300 units in the plans doc, 300 compute hours on the sign-up page. None is subtracted.

C · Three hours a day

$9.15

2 vCPU / 4 GiB / 20 GiB (plan: Developer)

• Compute units90 h × max(1, 2, ⌈4/4⌉, ⌈20/16⌉) = 180 units × $0.05$9.00
• Disk while stopped640 h × 24 GiB × $0.00001$0.15

• Between sessions the instance is paused: it bills only for its snapshot. A stopped instance is deleted.
• Live pages disagree on the free tier: 0 units on the pricing page, 300 units in the plans doc, 300 compute hours on the sign-up page. None is subtracted.

A · 1,000 short tasks

$9.17

2 vCPU / 4 GiB / 10 GiB (plan: Prepaid credit)

• CPU, while working166.67 h × 1 vCPU busy × $0.025$4.17
• Memory166.67 h × 4 GiB × $0.0075$5.00

• A stopped box keeps billing storage, including saved memory; only delete ends the charge.
• Automatic top-ups earn 5% extra credit, not subtracted here.

B · One always-on box

$54.54

4 vCPU / 8 GiB / 50 GiB (plan: Prepaid credit)

• CPU, while working730 h × 0.4 vCPU busy × $0.025$7.30
• Memory730 h × 8 GiB × $0.0075$43.80
• Disk while running730 h × 42.95 GB (after 10 free) × $0.0001096$3.44

• A stopped box keeps billing storage, including saved memory; only delete ends the charge.
• Automatic top-ups earn 5% extra credit, not subtracted here.

C · Three hours a day

$4.76

2 vCPU / 4 GiB / 20 GiB (plan: Prepaid credit)

• CPU, while working90 h × 0.2 vCPU busy × $0.025$0.45
• Memory90 h × 4 GiB × $0.0075$2.70
• Disk while running90 h × 10.74 GB (after 10 free) × $0.0001096$0.11
• Disk while stopped640 h × 21.47 GB × $0.0001096$1.51

• A stopped box keeps billing storage, including saved memory; only delete ends the charge.
• Automatic top-ups earn 5% extra credit, not subtracted here.

A · 1,000 short tasks

$20.00

small: 2 vCPU / 4 GiB / 12 GiB (plan: $20 plan)

• Machine time (small)166.67 h × $0.018$3.00

• $20 plan: $20.00 plan, $20.00 of usage included.
• Storage counts against an included quota and is not billed; going over blocks new sandboxes.
• Plans are per seat in an organisation.

B · One always-on box

$40.00

default: 4 vCPU / 8 GiB / 50 GiB (plan: $20 plan)

• Machine time (default)730 h × $0.036$26.28

• $20 plan: $20.00 plan, $20.00 of usage included, $20.00 in $20.00 packs for the $6.28 over.
• Storage counts against an included quota and is not billed; going over blocks new sandboxes.
• Plans are per seat in an organisation.

C · Three hours a day

$20.00

default: 4 vCPU / 8 GiB / 50 GiB (plan: $20 plan)

• Machine time (default)90 h × $0.036$3.24

• $20 plan: $20.00 plan, $20.00 of usage included.
• Storage counts against an included quota and is not billed; going over blocks new sandboxes.
• Plans are per seat in an organisation.

A · 1,000 short tasks

$22.18

2 vCPU / 4 GiB / 10 GiB (plan: Pay as you go)

• CPU, while working166.67 h × 1 vCPU busy × $0.0385$6.42
• Memory166.67 h × 4 GiB × $0.02187$14.58
• Disk while running166.67 h × 10 GiB × $0.00071$1.18

• Memory is billed on actual use; the calculator uses the memory you entered.
• A one-time $30 trial credit is not subtracted.
• The pricing page says there are no plans; the FAQ sells Hero ($100) and Mythic ($2,000). Pay as you go is used here.

B · One always-on box

$164.91

4 vCPU / 8 GiB / 50 GiB (plan: Pay as you go)

• CPU, while working730 h × 0.4 vCPU busy × $0.0385$11.24
• Memory730 h × 8 GiB × $0.02187$127.75
• Disk while running730 h × 50 GiB × $0.00071$25.91

• Memory is billed on actual use; the calculator uses the memory you entered.
• A one-time $30 trial credit is not subtracted.
• The pricing page says there are no plans; the FAQ sells Hero ($100) and Mythic ($2,000). Pay as you go is used here.

C · Three hours a day

$10.19

2 vCPU / 4 GiB / 20 GiB (plan: Pay as you go)

• CPU, while working90 h × 0.2 vCPU busy × $0.0385$0.69
• Memory90 h × 4 GiB × $0.02187$7.87
• Disk while running90 h × 20 GiB × $0.00071$1.28
• Disk while stopped640 h × 20 GiB × $0.000027$0.35

• Memory is billed on actual use; the calculator uses the memory you entered.
• A one-time $30 trial credit is not subtracted.
• The pricing page says there are no plans; the FAQ sells Hero ($100) and Mythic ($2,000). Pay as you go is used here.

A · 1,000 short tasks

$22.00

2 vCPU / 4 GiB / 10 GiB (plan: Usage Credits)

• CPU, while working166.67 h × 1 vCPU busy × $0.07$11.67
• Memory166.67 h × 4 GiB × $0.015$10.00
• Disk while running166.67 h × 10 GiB × $0.0002$0.33

• Prepaid packs of $5, $10 or $20 (500–2,000 CU; 1 CU = $0.01). At a zero balance Tensorlake stops running sandboxes rather than billing an overage.
• Rates are the Usage Credits rates. Pro's rates are lower — $0.042 per active core-hour, $0.009 per GB-hour of RAM (both 40% less) and $0.0001 per GB-hour of disk (50% less) — and its $250 fee includes 25,000 CU. The calculator prices every plan at the higher Usage Credits rates, so a Pro bill above $250 of monthly usage is overstated.
• Tensorlake's own pages word Pro differently: the pricing page says the fee includes 25,000 CU ($250 of usage); the billing docs and FAQ say "$250 per month plus metered usage". This guide reads them together as $250 that includes $250 of usage, with usage beyond it billed. Get it in writing before relying on it.
• CPU bills only while it executes, so the engine applies the workload's busy share. When Tensorlake cannot sample active CPU it falls back to allocated vCPU time, which costs more.
• Snapshot storage is $0.07 per GB-month while a sandbox is suspended, modelled here as a per-GB-hour stopped rate (0.07 ÷ 730) on the sandbox's disk size. Tensorlake says only unique bytes are billed, so the real figure can be lower.
• Billing is by the second in whole compute units, pooled per organization. Egress is free.
• Memory must be 1–8 GB per vCPU, so a 1 vCPU sandbox cannot exceed 8 GB of RAM.

B · One always-on box

$250.00

4 vCPU / 8 GiB / 50 GiB (plan: Pro)

• CPU, while working730 h × 0.4 vCPU busy × $0.07$20.44
• Memory730 h × 8 GiB × $0.015$87.60
• Disk while running730 h × 50 GiB × $0.0002$7.30

• Pro: $250.00 plan, $250.00 of usage included.
• Unlimited session duration and 1,000 concurrent sandboxes.
• Rates are the Usage Credits rates. Pro's rates are lower — $0.042 per active core-hour, $0.009 per GB-hour of RAM (both 40% less) and $0.0001 per GB-hour of disk (50% less) — and its $250 fee includes 25,000 CU. The calculator prices every plan at the higher Usage Credits rates, so a Pro bill above $250 of monthly usage is overstated.
• Tensorlake's own pages word Pro differently: the pricing page says the fee includes 25,000 CU ($250 of usage); the billing docs and FAQ say "$250 per month plus metered usage". This guide reads them together as $250 that includes $250 of usage, with usage beyond it billed. Get it in writing before relying on it.
• CPU bills only while it executes, so the engine applies the workload's busy share. When Tensorlake cannot sample active CPU it falls back to allocated vCPU time, which costs more.
• Snapshot storage is $0.07 per GB-month while a sandbox is suspended, modelled here as a per-GB-hour stopped rate (0.07 ÷ 730) on the sandbox's disk size. Tensorlake says only unique bytes are billed, so the real figure can be lower.
• Billing is by the second in whole compute units, pooled per organization. Egress is free.
• Memory must be 1–8 GB per vCPU, so a 1 vCPU sandbox cannot exceed 8 GB of RAM.

C · Three hours a day

$8.25

2 vCPU / 4 GiB / 20 GiB (plan: Usage Credits)

• CPU, while working90 h × 0.2 vCPU busy × $0.07$1.26
• Memory90 h × 4 GiB × $0.015$5.40
• Disk while running90 h × 20 GiB × $0.0002$0.36
• Disk while stopped640 h × 20 GiB × $0.00009589$1.23

• Prepaid packs of $5, $10 or $20 (500–2,000 CU; 1 CU = $0.01). At a zero balance Tensorlake stops running sandboxes rather than billing an overage.
• Rates are the Usage Credits rates. Pro's rates are lower — $0.042 per active core-hour, $0.009 per GB-hour of RAM (both 40% less) and $0.0001 per GB-hour of disk (50% less) — and its $250 fee includes 25,000 CU. The calculator prices every plan at the higher Usage Credits rates, so a Pro bill above $250 of monthly usage is overstated.
• Tensorlake's own pages word Pro differently: the pricing page says the fee includes 25,000 CU ($250 of usage); the billing docs and FAQ say "$250 per month plus metered usage". This guide reads them together as $250 that includes $250 of usage, with usage beyond it billed. Get it in writing before relying on it.
• CPU bills only while it executes, so the engine applies the workload's busy share. When Tensorlake cannot sample active CPU it falls back to allocated vCPU time, which costs more.
• Snapshot storage is $0.07 per GB-month while a sandbox is suspended, modelled here as a per-GB-hour stopped rate (0.07 ÷ 730) on the sandbox's disk size. Tensorlake says only unique bytes are billed, so the real figure can be lower.
• Billing is by the second in whole compute units, pooled per organization. Egress is free.
• Memory must be 1–8 GB per vCPU, so a 1 vCPU sandbox cannot exceed 8 GB of RAM.

A · 1,000 short tasks

$35.47

2 vCPU / 4 GiB / 10 GiB (plan: Pro)

• CPU, while working166.67 h × 1 vCPU busy × $0.128$21.33
• Memory166.67 h × 4 GiB × $0.0212$14.13

• Pro: $20.00 plan, $20.00 of usage included, $15.47 over.
• A persistent sandbox restores its files from a snapshot when it starts again, not its memory or running processes. Snapshot storage is $0.08 per GB-month; the calculator charges it on the full disk size, which overstates it if little is written.
• Each sandbox gets 64 GB of fast disk at no separate charge while it runs.
• Creations, data transfer and drives are billed separately and are not included.
• Sandboxes that cannot resume from a snapshot are removed after 14 days of inactivity.

B · One always-on box

$161.18, with a catch

4 vCPU / 8 GiB / 50 GiB (plan: Pro)

• CPU, while working730 h × 0.4 vCPU busy × $0.128$37.38
• Memory730 h × 8 GiB × $0.0212$123.81

• Pro: $20.00 plan, $20.00 of usage included, $141.18 over.
• A persistent sandbox restores its files from a snapshot when it starts again, not its memory or running processes. Snapshot storage is $0.08 per GB-month; the calculator charges it on the full disk size, which overstates it if little is written.
• Each sandbox gets 64 GB of fast disk at no separate charge while it runs.
• Creations, data transfer and drives are billed separately and are not included.
• Sandboxes that cannot resume from a snapshot are removed after 14 days of inactivity.

It cannot run this exactly as described: Sessions end after 24 hours, so an always-on machine has to be restarted by your own code.

C · Three hours a day

$20.00

2 vCPU / 4 GiB / 20 GiB (plan: Pro)

• CPU, while working90 h × 0.2 vCPU busy × $0.128$2.30
• Memory90 h × 4 GiB × $0.0212$7.63
• Disk while stopped640 h × 20 GiB × $0.0001096$1.40

• Pro: $20.00 plan, $20.00 of usage included.
• A persistent sandbox restores its files from a snapshot when it starts again, not its memory or running processes. Snapshot storage is $0.08 per GB-month; the calculator charges it on the full disk size, which overstates it if little is written.
• Each sandbox gets 64 GB of fast disk at no separate charge while it runs.
• Creations, data transfer and drives are billed separately and are not included.
• Sandboxes that cannot resume from a snapshot are removed after 14 days of inactivity.