API PRICES
OpenAI · gpt-5.1
Provider prices, cheapest first
Price comparison
- Official (cash)
- Input 1.25 / output 10 USD/million tokensOpenAI ·
- Lowest inference provider (cash)
- Input 1.25 / output 10 USD/million tokensOpenRouter · Aggregator · same as official ·
- Lowest relay (credit)
- 1.5469 CNY credit/million total tokenszhangsan.yun "image-2分组" ·
Official and inference-provider prices are cash; relay prices are site credit (USD credit or CNY credit), a different unit, compared separately. Relay prices are per million total tokens at 75% input and 25% output.
OpenAI · gpt-5.1 official price: input 1.25, output 10 USD per million tokens (OpenAI, observed 2026-10-17). Cheapest inference provider: OpenRouter, input 1.25, output 10 USD per million tokens. Cheapest relay: zhangsan.yun, group "image-2 group [machine translation] (on site: image-2分组)" 1.5469 CNY_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
Relay USD credit prices · Lowest 1.0313 · median 3.4375 · highest 20.625 · 58 quotes USD / per million tokens, site credit
Relay CNY credit prices · Lowest 1.5469 · median 5.1563 · highest 41.475 · 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 | 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: CNY credits per 1M tokens. These are site-credit prices; actual cost depends on each site’s top-up rate.
Price range: lowest 1.5469 · median 5.1563 · highest 41.475 (17 quotes, CNY credits per million total tokens)
Relays
Prices below are in site credit, not cash.
| # | Provider | Plan / conditions | Input ↑CNY credits / 1M | Output CNY credits / 1M | Cache readCNY credits / 1M | BlendedCNY credits / 1M | Details |
|---|---|---|---|---|---|---|---|
| Recent price | |||||||
| 01 | zhangsan.yunAsk or discussCollected: Collected this cycle View 1 plans | image-2 group [machine translation]Group on site: image-2分组 image-2 image generation [machine translation]Original: image-2生图 Operator pending verification | 0.5625 | 4.5 | 0.05625 | 1.5469Median price ÷ this price: 3.3× | Full prices and sources |
| 02 | pro.gemai.ccAsk or discussCollected: Collected this cycle View 3 plans | Azure All Azure group [machine translation]Original: Azure 分组 Operator pending verification | 0.875 | 7 | — | 2.4063Median price ÷ this price: 2.1× | Full prices and sources |
| 03 | proaiapi.techAsk or discussCollected: Collected this cycle View 2 plans | default Default group (for simple tasks, debugging, trial, personal learning, entry-level work tasks, etc.; low cost) [machine translation]Original: 默认分组 (适合简单任务、调试、体验、个人学习、初级工作任务等场景，成本低) Operator pending verification | 1 | 8 | 0.5 | 2.75Median price ÷ this price: 1.9× | Full prices and sources |
| 04 | ai.soruxgpt.comAsk or discussCollected: Collected this cycle View 3 plans | azure-low Azure low-price group [machine translation]Original: Azure 低价分组 Operator pending verification | 1.125 | 9 | — | 3.0938Median price ÷ this price: 1.7× | Full prices and sources |
| 05 | i.v1api.ccAsk or discussCollected: Collected this cycle View 3 plans | default Default group, supports all common models, 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，性价比首选，2折，倍率1.0 Operator pending verification | 1.25 | 10 | — | 3.4375Median price ÷ this price: 1.5× | Full prices and sources |
| 05 | www.ggwk1.onlineAsk or discussCollected: Collected this cycle View 8 plans | a all-model combined group-1x rate multiplier [machine translation]Group on site: a全模型综合组-1倍率 a all-model combined group-1x rate multiplier [machine translation]Original: a全模型综合组-1倍率 Operator pending verification | 1.25 | 10 | — | 3.4375Median price ÷ this price: 1.5× | Full prices and sources |
| 07 | www.moxin.studioAsk or discussCollected: Collected this cycle View 3 plans | GPT [discount] [machine translation]Group on site: GPT[折扣] GPT-discount, about 2 zhe (20%) of official [machine translation]Original: GPT-折扣，官方2折左右 Operator pending verification | 1.5 | 12 | 0.15 | 4.125Median price ÷ this price: 1.3× | Full prices and sources |
| 08 | api.yanai.it.comAsk or discussCollected: Collected this cycle View 1 plans | gpt_azure azure gpt, no image generation, has 5.5, no 5.6 [machine translation]Original: azure gpt，无生图，有 5.5，无 5.6 Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 09 | us.ai.easyart.ccAsk or discussCollected: Collected this cycle View 5 plans | gpt-cli gpt reverse-engineered [machine translation]Original: gpt逆向 Operator pending verification | 1.875 | 15 | 0.1875 | 5.1563Median price ÷ this price: 1× | Full prices and sources |
| 10 | aifast.siteAsk or discussCollected: Collected this cycle View 1 plans | Pure AZ [machine translation]Group on site: 纯AZ Pure AZ channel, distillation allowed [machine translation]Original: 纯AZ渠道，可蒸馏 Operator pending verification | 2.25 | 18 | — | 6.1875Median price ÷ this price: 0.8× | Full prices and sources |
| 11 | hboom.aiAsk or discussCollected: Collected this cycle View 5 plans | Azure-Mid Azure-Mid Operator pending verification | 2.55 | 20.4 | 0.255 | 7.0125Median price ÷ this price: 0.7× | Full prices and sources |
| 12 | hy88.myAsk or discussCollected: Collected this cycle View 2 plans | gpt_codexOperator pending verification | 2.996 | 23.968 | 0.2996 | 8.239Median price ÷ this price: 0.6× | Full prices and sources |
| 13 | api.34ku.comAsk or discussCollected: Collected this cycle View 1 plans | default Default group [machine translation]Original: 默认分组 Operator pending verification | 3.25 | 26 | 0.1625 | 8.9375Median price ÷ this price: 0.6× | Full prices and sources |
| 14 | api.147ai.cnAsk or discussCollected: Collected this cycle View 2 plans | az Azure key | OpenAl all models [machine translation]Original: Azure key | OpenAl全模型 Operator pending verification | 3.75 | 30 | 0.375 | 10.313Median price ÷ this price: 0.5× | Full prices and sources |
| 15 | agent.tokensea.aiAsk or discussCollected: Collected this cycle View 4 plans | gpt-0.7 gpt stable resources [machine translation]Original: gpt稳定资源 Operator pending verification | 6.125 | 36.75 | — | 13.781Median price ÷ this price: 0.4× | Full prices and sources |
| 16 | api.tacklekey.comAsk or discussCollected: Collected this cycle View 1 plans | default Name on site: openai/gpt-5.1 Default group Operator pending verification | 14.038 | 112.31 | 1.4038 | 38.606Median price ÷ this price: 0.1× | Full prices and sources |
| 17 | dapicloud.comAsk or discussCollected: Collected this cycle View 1 plans | gpt-azure Microsoft official azure resources [machine translation]Original: 微软官方azure资源 Operator pending verification | 15.082 | 120.65 | — | 41.475Median price ÷ this price: 0.1× | Full prices and sources |
| Older price | |||||||
| 01 | claudeaihub.cloudAsk or discussCollected: Carried previous price Not updated this time; showing the previous price View 1 plans | Cursor Cursor account pool · Claude uses the Claude protocol, others use OpenAI [machine translation]Original: Cursor 号池 · Claude 走 Claude 协议，其它走 OpenAI Operator pending verification | 0.625 | 2.5 | 0.0625 | 1.0938Median price ÷ this price: 4.7× | Full prices and sources |
Related variants · 2 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): 2 rows
- ai.soruxgpt.com · default · gpt-5.1-thinking · Input 1.25 / Output 10 CNY credits / 1M
- api.34ku.com · default · gpt-5.1-thinking · Input 3.25 / Output 26 CNY 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
46 recent · 1 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.
Sources not accepted this cycle and reasons
FAQ
Which API is cheapest for OpenAI · gpt-5.1?
zhangsan.yun, group "image-2分组 (image-2 group)", 1.5469 CNY 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 →