API PRICES

OpenAI · gpt-5.1

Per-request prices, cheapest first

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Price ranges per million tokens

Official cash prices · Lowest 3.4375 · median 3.4375 · highest 3.4375 · 1 quotes USD / per million tokens

Inference provider cash prices · Lowest 3.4375 · median 3.4375 · highest 3.4375 · 1 quotes USD / per million tokens

Ranked by price per request.

Unit: USD credits per request. These are site-credit prices; actual cost depends on each site’s top-up rate.

Filtering by provider: api-cf.apiyi.com

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sites have comparable prices100177 sites list this model; approximately 0 operators on this board
Lowest price per request—USD credits / request
Median of each provider’s lowest price—USD credits / request

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How this ranking works

All per-request prices: 21,074 prices from 649 sites (about 565 companies). 19,415 are ranked, from 634 sites (about 551 companies); 1,659 more are listed separately and not ranked. Prices collected up to 2026-10-17.

This model has 51 per-request prices; 2 can be compared directly. Not comparable yet: price not parsed yet 48, display unit not confirmed 1

0 recent · 0 stale (older than 10 days, or not updated by this refresh) · 0 unverified timestamps. No recent prices to summarize in this group. 0 zero values are separately unverified, without proof of free eligibility.

Per-request price = model price × group ratio, converted to site credits with the site’s own unit. Prices per second or per image are listed separately.

Prices are converted to site credits using each site’s published ratio and display multiplier. What you actually pay depends on its top-up rate. Several sites run by the same company take one place in the ranking: its cheapest plan, with the other sites listed under it. We judge “same company” by identical prices, status pages or homepage code; this is not a legal finding. To see every site’s prices, choose “All plans” or filter by provider.

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FAQ

Which API is cheapest for OpenAI · gpt-5.1?

No valid quotes within 10 days. Older quotes are listed as reference prices.

What is the official price for OpenAI · gpt-5.1?

Input 1.25, output 10 USD per million tokens, checked 2026-10-17. Lowest inference provider: OpenRouter, input 1.25, output 10 USD per million tokens. Input 0% higher than official.

How do I use OpenAI · gpt-5.1 in Claude Code or Codex?

Install Grandet Skill, then say "Connect the cheapest OpenAI · gpt-5.1 API to Claude Code for me". Install Skill →