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OpenAI · gpt-5.1

Tiered prices, cheapest first

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Uses the standard tier (shortest context, base price). Full rules are in Details.

Unit: USD credits per 1M tokens. These are site-credit prices; actual cost depends on each site’s top-up rate.

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sites have comparable prices101184 sites list this model; approximately 6 operators on this board
Older lowest input price (reference)0.9375USD credits / 1M
Median of each provider’s lowest price1.25USD credits / 1M
#ProviderPlan / conditionsInput ↑USD credits / 1MOutput USD credits / 1MCache readUSD credits / 1MBlendedUSD credits / 1MDetails
Older price
01wolfai.topAsk or discussCollected:
View 4 plans		Azure
Standard tier · standard
Claude+OpenAI | Microsoft Azure pure-blood (all official) official relay channel [machine translation]Original: Claude+OpenAI｜微软 Azure 纯血官转渠道
0.93757.50.093752.578125Full prices and sources
02home.moleapi.comAsk or discussCollected:
View 2 plans		discount
Standard tier · base
Special price [machine translation]Original: 特价
180.12.75Full prices and sources
03api.101aix.comAsk or discussCollected:
View 2 plans		OpenAI
Standard tier · standard · 8 tiers
OpenAI|pure OpenAI official native KEY [machine translation]Original: OpenAI|纯OpenAI官方原生KEY
1.25100.1253.4375Full prices and sources
03lightingtheword.comAsk or discussCollected:
View 1 plans		default
Standard tier · standard
Default group [machine translation]Original: 默认分组
1.25100.1253.4375Full prices and sources
03witflow.aiAsk or discussCollected:
View 4 plans
1 more site of the same company

Basis: identical quotes, same status-page name, logo or server address. Counted as one company in the ranking; this is not a legal finding.

Iamge-AZ exclusive [machine translation]Group on site: Iamge-AZ专属
Standard tier · standard
1.25100.1253.4375Full prices and sources
06claudecn.aiAsk or discussCollected:
View 1 plans
2 more sites of the same company

Basis: identical homepage assets, identical quotes, same status-page name, logo or server address. Counted as one company in the ranking; this is not a legal finding.

Full price Openai [machine translation]Group on site: 正价Openai
Standard tier · standard
Openai full price API [machine translation]Original: Openai正价API
8.75700.87524.0625Full prices and sources
Special groups · 1 rows · not ranked

These plans are marked as test, internal, disabled, gated by top-up or membership, or have a near-zero ratio. They may not be purchasable or stable, so they are listed separately and left out of the ranking and statistics.

  • marked display-only or do-not-select: 1 rows
  • ff.zwenooo.link · ds4 · gpt-5.1 · Input 1.25 / Output 10 USD credits / 1M
View all 1 rows →
Related variants · 1 rows · not ranked

These are special editions of the model (thinking, max, search, batch, long context, free, etc.). They are priced differently from the base model, so they are listed separately and not ranked. Names that only add an effort level such as low, high or nothinking are compared with the base model.

  • vercel/openai/gpt-5.1-thinking (-thinking · thinking edition): 1 rows
  • ai.bytonsec.com · VERCEL · vercel/openai/gpt-5.1-thinking · Input 7.5 / Output 60 USD credits / 1M
View all 1 rows →
How this ranking works

All tiered prices: 27,612 prices from 609 sites (about 531 companies). 26,040 are ranked, from 602 sites (about 524 companies); 1,572 more are listed separately and not ranked. Prices collected up to 2026-10-10.

This model has 33 tiered prices; 28 can be compared directly (26 ranked, 2 listed separately). Not comparable yet: display unit not confirmed 3, new price under review; showing the previous one 2

0 recent · 20 stale (older than 7 days, or not updated by this refresh) · 0 unverified timestamps. Only older prices are available, so the statistics are for reference only. 0 zero values are separately unverified, without proof of free eligibility.

For tiered models (e.g. longer context costs more) we use the standard tier: shortest context, normal service tier, base price without promotions. Prices that change with time of day or request options are listed separately with the reason. See “Details” for the full rules.

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.

Full methodology →