API PRICES
OpenAI · gpt-5.1
Provider prices, cheapest first
OpenAI · gpt-5.1 official price: input 1.25, output 10.00 USD per million tokens (OpenAI, observed 2026-10-17). Cheapest inference provider: OpenRouter, input 1.25, output 10 USD per million tokens. Cheapest relay: llms.best, group "Codex" 1.03125 USD_CREDIT per million total tokens (credit price, not cash, observed 2026-10-16). 100 sites have comparable prices; 177 sites list this model.Relay blended price uses 75% input and 25% output.
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
USD_CREDIT · Lowest 1.03125 · median 3.4375 · highest 20.625 · 58 quotes USD / per million tokens, site credit
CNY_CREDIT · Lowest 1.546875 · median 5.15625 · highest 41.4747196875 · 17 quotes CNY / per million tokens, site credit
Official price
| Provider | Input | Output | Cache read | Cache write | Unit | Observed | Conditions and source |
|---|---|---|---|---|---|---|---|
| OpenAI | 1.25 | 10.00 | 0.125 | — | USD / 1M tokens | Official source |
Official prices are the vendor's cash prices. Inference providers also list cash prices and can be compared directly. Relays list prices in site credit; what you actually pay depends on each site's top-up rate, so they cannot be compared with official prices directly.
Inference providers
| Provider | Input | Output | Cache read | Cache write | Unit | Observed | Conditions and source | vs official |
|---|---|---|---|---|---|---|---|---|
| OpenRouter · Aggregator | 1.25 | 10 | 0.125 | — | USD / 1M tokens | Official source | Input 0% · Output 0% |
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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Browse all providersPrice range: lowest 1.03125 · median 3.4375 · highest 20.625 (58 quotes, USD credits per million total tokens)
Relays
Prices below are in site credit, not cash.
| # | Provider | Plan / conditions | Input ↑USD credits / 1M | Output USD credits / 1M | Cache readUSD credits / 1M | BlendedUSD credits / 1M | Details |
|---|---|---|---|---|---|---|---|
| Recent price | |||||||
| 12 | api.onefaka.comAsk or discussCollected: Collected this cycle View 5 plans | c15 Claude Channel 15 Only Operator pending verification | 1.25 | 10 | 0.125 | 3.4375Median price ÷ this price: 1× | Full prices and sources |
| 12 | api.pezayo.comAsk or discussCollected: Collected this cycle View 2 plans | default Default group, use all models via the openai chat completion format [machine translation]Original: 默认分组，通过 openai chat completion 格式使用全部模型 Operator pending verification | 1.25 | 10 | 0.125 | 3.4375Median price ÷ this price: 1× | Full prices and sources |
| 12 | api.xhuoai.comAsk or discussCollected: Collected this cycle View 4 plans | default Default group, supports all common models, OpenAI special-price channel (AZ Microsoft channel) Claude Code, Gemini stable channel (GCP/Velax), top value-for-money choice, 20% of list price, rate multiplier 1.0 [machine translation]Original: 默认分组，支持所有常用模型,OpenAI特价渠道（AZ微软渠道）Claude Code,Gemini稳定渠道（GCP/Velax），性价比首选，2折，倍率1.0 Operator pending verification | 1.25 | 10 | — | 3.4375Median price ÷ this price: 1× | Full prices and sources |
| 12 | api.xistree.hkAsk or discussCollected: Collected this cycle View 4 plans | default Default group [machine translation]Original: 默认分组 Operator pending verification | 1.25 | 10 | — | 3.4375Median price ÷ this price: 1× | Full prices and sources |
| 12 | api.zhiyunai168.comAsk or discussCollected: Collected this cycle View 3 plans 1 more site of the same companyBasis: 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. | Azure Azure gpt series all models, normal concurrency t1key pool, gpt-5.5 not yet supported, gpt-image-2 not yet supported [machine translation]Original: Azure gpt系列全模型，普通并发t1key池，暂不支持gpt-5.5，暂不支持gpt-image-2 Operator pending verification | 1.25 | 10 | — | 3.4375Median price ÷ this price: 1× | Full prices and sources |
| 12 | bita-api-production.up.railway.appAsk or discussCollected: Collected this cycle View 1 plans | gpt-origin gpt full suite [machine translation]Original: gpt全家桶 Operator pending verification | 1.25 | 10 | 0.125 | 3.4375Median price ÷ this price: 1× | Full prices and sources |
| 12 | llm.azopenai.comAsk or discussCollected: Collected this cycle View 1 plans | default default Operator pending verification | 1.25 | 10 | 0.125 | 3.4375Median price ÷ this price: 1× | Full prices and sources |
| 12 | nekoapi.comAsk or discussCollected: Collected this cycle View 1 plans 1 more site of the same companyBasis: identical homepage assets, identical quotes. Counted as one company in the ranking; this is not a legal finding. | default Default (Azure + base models) | Azure + Other Base Models [machine translation]Original: 默认（Azure + 基础模型）| Azure + Other Base Models Operator pending verification | 1.25 | 10 | 0.125 | 3.4375Median price ÷ this price: 1× | Full prices and sources |
| 12 | new.yihubang.topAsk or discussCollected: Collected this cycle View 3 plans | GPT relay [machine translation]Group on site: GPT 中转 GPT relay [machine translation]Original: GPT 中转 Operator pending verification | 1.25 | 10 | 0.125 | 3.4375Median price ÷ this price: 1× | Full prices and sources |
| 12 | novaapi.aiAsk or discussCollected: Collected this cycle View 2 plans | default Default group [machine translation]Original: 默认分组 Operator pending verification | 1.25 | 10 | — | 3.4375Median price ÷ this price: 1× | Full prices and sources |
| 12 | sg.uiuiapi.comAsk or discussCollected: Collected this cycle View 7 plans | default ⭐ Default (mixed channels) | Azure + official models [machine translation]Original: ⭐ 默认（混渠道）| Azure + 官模型 Operator pending verification | 1.25 | 10 | 0.125 | 3.4375Median price ÷ this price: 1× | Full prices and sources |
| 12 | tenzen.aiAsk or discussCollected: Collected this cycle View 3 plans 1 more site of the same companyBasis: 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. | gpt-azOperator pending verification | 1.25 | 10 | — | 3.4375Median price ÷ this price: 1× | Full prices and sources |
| 12 | xinsuanai.comAsk or discussCollected: Collected this cycle View 4 plans | default Default group [machine translation]Original: 默认分组 Operator pending verification | 1.25 | 10 | — | 3.4375Median price ÷ this price: 1× | Full prices and sources |
| 12 | yinli.oneAsk or discussCollected: Collected this cycle View 8 plans | deepseek Deepseek channel [machine translation]Original: Deepseek渠道 Operator pending verification | 1.25 | 10 | — | 3.4375Median price ÷ this price: 1× | Full prices and sources |
| 12 | yourapi.cnAsk or discussCollected: Collected this cycle View 2 plans | az-special az special-price models [machine translation]Original: az特价模型 Operator pending verification | 1.25 | 10 | 0.125 | 3.4375Median price ÷ this price: 1× | Full prices and sources |
| 12 | zen-ai.topAsk or discussCollected: Collected this cycle View 3 plans | default ✨az official relay + others, 1 yuan per dao (US dollar) [machine translation]Original: ✨az官转+其他模型, 1元一刀 Operator pending verification | 1.25 | 10 | 0.125 | 3.4375Median price ÷ this price: 1× | Full prices and sources |
| 42 | hohoapi.comAsk or discussCollected: Collected this cycle View 2 plans | default General channel (most models on the site available) [machine translation]Original: 通用渠道（全站大部分模型可用） Operator pending verification | 1.625 | 13 | — | 4.46875Median price ÷ this price: 0.769230769230769230769230769230769231× | Full prices and sources |
| 43 | aws.babyAsk or discussCollected: Collected this cycle View 3 plans | Az GPT text [machine translation]Group on site: Az GPT 文本 Commonly used text models [machine translation]Original: 常用文本模型 Operator pending verification | 1.875 | 15 | 0.1875 | 5.15625Median price ÷ this price: 0.666666666666666666666666666666666667× | Full prices and sources |
| 43 | learn-ai.topAsk or discussCollected: Collected this cycle View 1 plans | openai 1.5 Operator pending verification | 1.875 | 15 | — | 5.15625Median price ÷ this price: 0.666666666666666666666666666666666667× | Full prices and sources |
| 43 | poloai.topAsk or discussCollected: Collected this cycle View 7 plans 2 more sites of the same companyBasis: identical quotes, same status-page name, logo or server address. Counted as one company in the ranking; this is not a legal finding. | az Microsoft Azure account pool resources [machine translation]Original: 微软Azure号池资源 Operator pending verification | 1.875 | 15 | 0.1875 | 5.15625Median price ÷ this price: 0.666666666666666666666666666666666667× | Full prices and sources |
| 46 | www.cybersol.netAsk or discussCollected: Collected this cycle View 2 plans | GPT Advance Openai official Tier5 account direct connection, high availability. Too much image generation abuse will cause errors and disabling. [machine translation]Original: Openai官方Tier5账号直连，高可用。出图滥用过多会报错禁用。 Operator pending verification | 2.25 | 18 | 0.225 | 6.1875Median price ÷ this price: 0.555555555555555555555555555555555556× | Full prices and sources |
| 47 | api.vibelearning.topAsk or discussCollected: Collected this cycle View 2 plans | azure-gpt Independent official line, not a subscription-account reverse proxy, consistently stable, 2000 RPM, distillation allowed [machine translation]Original: 独立官方线路，非订阅账号反代，持续稳定，2000 RPM，可蒸馏 Operator pending verification | 2.75 | 22 | — | 7.5625Median price ÷ this price: 0.454545454545454545454545454545454545× | Full prices and sources |
| 47 | apijing.comAsk or discussCollected: Collected this cycle View 1 plans | azude with images [machine translation]Group on site: azude带图片 azude with images [machine translation]Original: azude带图片 Operator pending verification | 2.75 | 22 | 0.275 | 7.5625Median price ÷ this price: 0.454545454545454545454545454545454545× | Full prices and sources |
| 49 | ai.ufoai.onlineAsk or discussCollected: Collected this cycle View 3 plans | GPT [discount] [machine translation]Group on site: GPT[折扣] GPT[discount], 83% cheaper than official [machine translation]Original: GPT[折扣]，比官方便宜83% Operator pending verification | 3 | 24 | 0.3 | 8.25Median price ÷ this price: 0.416666666666666666666666666666666667× | Full prices and sources |
| 49 | kpzhu.comAsk or discussCollected: Collected this cycle View 1 plans 1 more site of the same companyBasis: 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. | Azure Gpt text-only stable [machine translation]Group on site: Azure Gpt纯文本稳定 Supports 5.6 only [machine translation]Original: 只支持5.6 Operator pending verification | 3 | 24 | 0.3 | 8.25Median price ÷ this price: 0.416666666666666666666666666666666667× | Full 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.
- test or debug group: 1 rows
- test-api.apiqik.online · openai · gpt-5.1 · Input 0.375 / Output 3 USD credits / 1M
Related variants · 20 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.
- gpt-5.1-thinking (-thinking · thinking edition): 20 rows
- ai.comfly.org · vip · gpt-5.1-thinking · Input 1 / Output 8 USD credits / 1M
- ai.t8star.org · vip · gpt-5.1-thinking · Input 1 / Output 8 USD credits / 1M
- api.bltcy.ai · vip · gpt-5.1-thinking · Input 1 / Output 8 USD credits / 1M
- api.bltcy.top · vip · gpt-5.1-thinking · Input 1 / Output 8 USD credits / 1M
- kg-api.cloud · vip · gpt-5.1-thinking · Input 1 / Output 8 USD credits / 1M
- one-api.bltcy.top · vip · gpt-5.1-thinking · Input 1 / Output 8 USD credits / 1M
- ai.comfly.org · default · gpt-5.1-thinking · Input 1.25 / Output 10 USD credits / 1M
- ai.t8star.org · default · gpt-5.1-thinking · Input 1.25 / Output 10 USD credits / 1M
- api.bltcy.ai · default · gpt-5.1-thinking · Input 1.25 / Output 10 USD credits / 1M
- api.bltcy.top · default · gpt-5.1-thinking · Input 1.25 / Output 10 USD credits / 1M
How this ranking works
All per-token prices: 97,455 prices from 871 sites (about 765 companies). 89,631 are ranked, from 861 sites (about 755 companies); 7,824 more are listed separately and not ranked. Prices collected up to 2026-10-17.
This model has 792 recorded prices; 375 can be compared directly (352 ranked, 23 listed separately). Not comparable yet: price not parsed yet 265, scope of the official doc price not confirmed 60, ratio looks unset 40, tiered by rules (see Tiered prices) 23, display unit not confirmed 14, billed per request or another unit 3
284 recent · 21 stale (older than 10 days, or not updated by this refresh) · 0 unverified timestamps. Minimum and median only count recent paid prices; older prices stay in the table. 0 zero-valued pairs are separately unverified, without proof of free eligibility. Timing does not verify payment, upstream identity or quality.
Prices are converted to site credits using each site’s published ratio. What you actually pay depends on its top-up rate. Input, output and cache prices in each row come from the same plan. 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.
“Self-declared unofficial channel” means the plan name itself says “reverse-engineered” or similar. We have not verified their source or quality. Minimum and median only count regular plans.
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FAQ
Which API is cheapest for OpenAI · gpt-5.1?
llms.best, group "Codex", 1.031 USD credit per million total tokens, observed 2026-10-16. 100 sites have comparable 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 →