New accounts get 50 credits, ready to spend on your own machine in the TUI; inviting friends earns more (rules). Closed beta: top-ups come with 30% extra credits, subscriptions with 50–70% extra.
Free speedups · 50 credits at sign-up→

Start free.
Pay as you use.

The 50 free credits are ready to spend on your own machine. On our GPUs the estimate is free; buy the patch once it is faster.

  • 50 credits at sign-up
  • No machine charge on yours
  • Cloud estimate free
  • First cloud run free
  • No speedup, deposit back

On your own machine with autooptm (recommended)

Your code runs only on your machine; no estimate, deposit or patch quote.

Machine: 0The machine is yours.
Tokens at 10% of listPer million: 0.40 in · 2.00 out · 0.02 cache read · 0.80 cache write, billed as used.
Pauses only when the balance runs outNever below zero; top up and /resume.
By use, not by resultThe patch is yours either way. Our fault before any result: all of it back.

The welcome gift and referrals

50 credits at sign-up, never expiring, kept apart from what you buy.

Your machine: any timeSpent first, before what you bought.
Our GPUs: while subscribedAnd spent last.
One per personOne per mailbox, and one per machine; none for throwaway addresses.
10 a dayAt most 10 gift credits a day, back at 00:00 UTC; past that, what you bought pays.
Invite a friendThey make a first purchase: you get 10 (10 a month at most). They pay $28: you each get 20.
Not cashNo refund, withdrawal or transfer; duplicate accounts lose it. Terms
Trial pack
$3
10 credits · $0.30 / credit
  • The best rate we offer, once per account
  • ≈ 2–3 full runs on your own repository (a run takes about 2–5 credits)
  • Credits valid 24 months
  • Private code supported (zip upload)
Usage pack
$5 +
$0.77 / credit · +30% in beta · any amount
  • Credits valid for 24 months
  • Private repos, results kept private
  • Buy more as needed, no commitment
  • A run takes about 2–5 credits ≈ $1.5–4, depending on code size, complexity, what the run finds and the speedup
  • Card or WeChat Pay, any amount; WeChat Pay requires a QR scan on desktop
Pro +50% credits · beta
$28 / mo
42 credits · $0.67 / credit
  • 50% bonus credits per dollar during the beta
  • ≈ 10–15 full runs per month
  • Private repos · 5 concurrent
Max +60% credits · beta
$99 / mo
158.4 credits · $0.63 / credit
  • ≈ 40–60 full runs per month
  • Private repos · priority queue · 5 concurrent
Max+ +70% · beta
$199 / mo
338.3 credits · $0.59 / credit
  • ≈ 85–130 full runs per month
  • Top queue priority · 5 concurrent
  • For heavy individual use: large repos, many parallel runs
Beta bonus · top-ups +30% · Pro +50% · Max +60% · Max+ +70% Subscription credits reset each period · packs last 24 months Packs: WeChat Pay (desktop QR) or card · Subscriptions: card only · WeChat users can buy the 30-day pack at the same price and bonus

What a run costs

Compute always at 50%, tokens at 8–13% by speedup

Metered on actual use, against public list prices (GPUs at Beam / Modal, tokens at Anthropic's API rates). Compute is always 50%, and a CPU-only run has no machine charge; tokens are 8–13% by speedup. Below, a real RTX 4090 run: 2.8 hours, 1.61× end to end.

ComputeGPU + sandbox, by the second
5.5 × 50% = 2.8
Model tokensreading, editing, verifying
12.7 × 11% = 1.4
At list ≈ 18.2 creditsYou pay ≈ 4.2 credits
listyou pay
8%speedup under 20%
9%20%–50%
11%50%–100%
13%100% and up

The token share follows the end-to-end speedup; this run is the highlighted tier. Under 1.10× no patch is sold and the deposit comes back.

When you are charged

1 · Free estimate
0
A scan of seconds; none of your code runs.
→
2 · Continue
2 credits
The analysis deposit, credited in full against the patch; returned when nothing is found.
→
3 · Buy the patch
quote − 2
Only once it is confirmed faster; never more than the quote.
Target missed (< 1.10×)No patch is sold, you still get the report, and the deposit is returned.
The failure is oursInfrastructure failure, timeout, an environment that will not build, a program too big for our largest GPU and the like: the deposit comes back.
Estimate skippedThe deposit is taken at submit; cancelling within 5 minutes still returns it.
SubscribersPro waives 1 deposit per period; Max / Max+ waive 3. Stopping at the estimate is always free.

How quickly 4.2 credits pay for themselves

Buy the patch once; the speedup lasts. 1.61× saves 38% of every hour. At public cloud rates:

RTX 4090$0.7 / h · saves $0.27
16 hours to pay back
RTX 5090$1.1 / h · saves $0.42
10 hours
H100$6.9 / h (AWS) · saves $2.61
2 hours

For a job that retrains 20 hours a week on an H100, the first month's savings alone far exceed the cost of the patch.

Billing rules

When you are charged, and when you are refunded

EstimateFree; none of your code runs.
Continue2-credit deposit, credited in full against the patch.
UnlockCharged at the quote, which is actual usage with no markup; never more.
Target missedNo patch sold; you still get the report; deposit returned.
Our failureThe deposit returns to your balance.
Own machine (autooptm)No machine charge; tokens at 10% of Opus 5.5 list, billed as used whatever the outcome; pauses when the balance runs out. Details
Deduction orderCurrent-period subscription credits first, then packs, oldest first.

Speedup = the end-to-end wall-clock time of your own command, optimised versus the frozen baseline. The report breaks it down into startup, the key loop and everything after it.

Try it free. Then decide.