OPENAI-COMPATIBLE API · FIXED 30-DAY QUOTA
OpenAI-compatible API keys — works with ChatGPT tools
API keys on one OpenAI-compatible endpoint: a fixed monthly price, a 30-day quota, no overage fees, OpenAI SDKs unchanged. Three models — luna, terra, sol.
Independently operated — who runs this and where is on the About page. About
Estimated equivalent cost of the 318,420,000 credits spent this cycle, at reference rates — same workload, same models.
https://aifromu.com/v1
// 01 · PRICING
Four plans. Zero overage.
Starter
Growth
Pro
Scale
When credits reach zero, new requests stop. Your card is never charged for overage.
// 02 · SAVINGS
More model for the same budget.
ESTIMATEDIllustrative cost per 1M short-context uncached input tokens
| MODEL | REFERENCE RATE | AI FROM U SCALE, EST. | DIFFERENCE |
|---|---|---|---|
| sol | $5.00 | $1.11 | ≈ −78% |
| terra | $1.00 | $0.44 | ≈ −56% |
| luna | $0.20 | $0.04 | ≈ −78% |
Same $60. Up to 4.5× the short-context uncached input tokens.
Estimated equivalent cost on the Scale plan, input-token basis. Your effective rate depends on how you use your quota — the point stands: the same budget buys you more model.
How this is estimated
- Holds when the full 1.35B credits of the Scale plan ($60) are used within the 30-day window.
- Cache reads, cache writes, reasoning output and long-context requests convert at different rates.
- Comparisons apply once a model is bound to its exact upstream counterpart.
- Reference rates are indicative and not a verified provider quote. We will label them as provider list price only once verified and dated.
// 03 · CREDITS
Credits are your quota. Raw tokens are the receipt.
AI credits are AI From U's quota unit. Each request converts provider-reported usage into credits using model-specific rates.
Your portal shows credits alongside raw-token usage, so you can verify what your workload consumed.
Deducted from your plan. When the balance reaches zero, new requests stop.
Provider-reported input and output usage, including reasoning and cache breakdowns.
Cache reads use the midpoint between the uncached-input and cache-read rates. Under current rates, that is 0.55× the credits of uncached input.
// 04 · MODELS
Three models. One endpoint.
Weights affect credits charged, not raw-token counts.
How AI credits are calculated
One Luna input token equals one AI credit. Other models and token categories use the weights below. Output and reasoning share a single weight, so reasoning is never counted twice.
Short context
| MODEL | INPUT | CACHE READ | CACHE WRITE | OUTPUT + REASONING |
|---|---|---|---|---|
| LUNA | 1 | 0.55 | 1.25 | 6 |
| TERRA | 10 | 5.5 | 12.5 | 60 |
| SOL | 25 | 13.75 | 31.25 | 150 |
Long context
| MODEL | INPUT | CACHE READ | CACHE WRITE | OUTPUT + REASONING |
|---|---|---|---|---|
| LUNA | 2 | 1.1 | 2.5 | 9 |
| TERRA | 20 | 11 | 25 | 90 |
| SOL | 50 | 27.5 | 62.5 | 225 |
Requests above 272K actual input tokens use long-context rates. Unclassified usage is charged using the higher applicable input or output weight.
// 05 · HOW IT WORKS
From checkout to first call
Pick the 30-day plan that matches your usage.
Complete your purchase on Polar's secure checkout — Polar is our merchant of record.
Your plan activates after Polar confirms your payment.
Receive your API key, store it securely, and start calling
https://aifromu.com/v1
// 06 · API
Two lines to switch
Anything that speaks the OpenAI API format works. Change the base URL, keep your code.
curl https://aifromu.com/v1/models \ -H "Authorization: Bearer $AIFU_API_KEY"
from openai import OpenAI client = OpenAI( base_url="https://aifromu.com/v1", api_key="YOUR_AIFU_API_KEY", ) resp = client.chat.completions.create( model="terra", messages=[{"role": "user", "content": "Hello from AI From U"}], ) print(resp.choices[0].message.content)
Built to be verifiable
05 / 05 GUARANTEESRequests stop when your credit balance reaches zero. No silent overage.
Only confirmed payment activates your plan. The return page never grants access.
API keys are shown once and can be rotated securely from your portal.
Checkout, invoices and subscription management are handled on pages hosted by Polar, our merchant of record.
Credits are shown beside provider-reported raw-token usage, so you can verify every deduction.
// FAQ
Questions, answered
What are AI credits and raw tokens?
AI credits are AI From U's quota unit, deducted from your plan. Raw tokens are the provider-reported usage each request consumed. Your portal shows both, so you can verify every deduction.
How does cache-read pricing work?
Cache reads use the midpoint between the uncached-input and cache-read rates. Under current rates, this is 0.55× the credits of uncached input. AI From U shares 50% of the cache-read savings with you.
What happens when I run out of credits?
New requests stop when your credit balance reaches zero. AI From U does not charge usage-based overage fees. Your subscription continues to renew according to its billing cycle.
When do I receive my API key?
After payment confirmation activates your plan. The key is revealed once in the portal — store it safely. You can rotate it at any time.
How do I manage or cancel my subscription?
In the Polar billing portal, linked from your AI From U portal. Plans renew every 30 days and can be cancelled there.
How can I verify my usage?
Your portal shows AI credits alongside provider-reported raw-token usage, including input, output, reasoning and cache breakdowns. Recent request IDs are redacted but remain available for reconciliation.
How are my API key and payment details protected?
Your complete API key is shown only once and can be rotated from the portal. Card details are handled on Polar-hosted checkout and billing pages; AI From U does not collect or store raw card information.
Is AI From U an official OpenAI service?
No. AI From U is an independent service that provides access to OpenAI models through an OpenAI-compatible API format. OpenAI provides the underlying models, while AI From U manages access, credits, usage reporting and billing.