API PRICES
gpt-5.1
Provider prices, cheapest first
gpt-5.1 official price: not yet recorded. Cheapest relay: llms.best, group "Codex" 1.0313 USD_CREDIT per million total tokens (credit price, not cash, observed 2026-10-16). 98 sites have comparable prices; 98 sites list this model.Relay blended price uses 75% input and 25% output.
Price ranges per million tokens
Relay USD credit prices · Lowest 1.0313 · median 4.5 · highest 34.375 · 223 quotes USD / per million tokens, site credit
Relay CNY credit prices · Lowest 1.5469 · median 8.9375 · highest 41.475 · 41 quotes CNY / per million tokens, site credit
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.
Unit: USD credits per 1M tokens. These are site-credit prices; actual cost depends on each site’s top-up rate.
Price range: lowest 1.0313 · median 4.5 · highest 34.375 (223 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 | |||||||
| 20 | new.yihubang.topAsk or discussCollected: Collected this cycle View 3 plans | GPT relay [machine translation]Group on site: GPT 中转 Name on site: gpt-5.1 GPT relay [machine translation]Original: GPT 中转 Operator pending verification | 1.25 | 10 | 0.125 | 3.4375Median price ÷ this price: 1.3× | Full prices and sources |
| 20 | new.yihubang.topAsk or discussCollected: Collected this cycle View 3 plans | gpt plus Name on site: gpt-5.1 gpt plus Operator pending verification | 1.25 | 10 | 0.125 | 3.4375Median price ÷ this price: 1.3× | Full prices and sources |
| 20 | new.yihubang.topAsk or discussCollected: Collected this cycle View 3 plans | gpt pro Name on site: gpt-5.1 gpt pro Operator pending verification | 1.25 | 10 | 0.125 | 3.4375Median price ÷ this price: 1.3× | Full prices and sources |
| 20 | novaapi.aiAsk or discussCollected: Collected this cycle View 2 plans | default Name on site: gpt-5.1 Default group [machine translation]Original: 默认分组 Operator pending verification | 1.25 | 10 | — | 3.4375Median price ÷ this price: 1.3× | Full prices and sources |
| 20 | novaapi.aiAsk or discussCollected: Collected this cycle View 2 plans | vip Name on site: gpt-5.1 vip group [machine translation]Original: vip分组 Operator pending verification | 1.25 | 10 | — | 3.4375Median price ÷ this price: 1.3× | Full prices and sources |
| 20 | sg.uiuiapi.comAsk or discussCollected: Collected this cycle View 4 plans | default Name on site: gpt-5.1 ⭐ 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: 1.3× | Full prices and sources |
| 20 | 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-az Name on site: gpt-5.1 Operator pending verification | 1.25 | 10 | — | 3.4375Median price ÷ this price: 1.3× | Full prices and sources |
| 20 | 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. | vip Name on site: gpt-5.1 vip group [machine translation]Original: vip分组 Operator pending verification | 1.25 | 10 | — | 3.4375Median price ÷ this price: 1.3× | Full prices and sources |
| 20 | 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. | ze Name on site: gpt-5.1 ze-claude Operator pending verification | 1.25 | 10 | — | 3.4375Median price ÷ this price: 1.3× | Full prices and sources |
| 20 | xinsuanai.comAsk or discussCollected: Collected this cycle View 4 plans | default Name on site: gpt-5.1 Default group [machine translation]Original: 默认分组 Operator pending verification | 1.25 | 10 | — | 3.4375Median price ÷ this price: 1.3× | Full prices and sources |
| 20 | yinli.oneAsk or discussCollected: Collected this cycle View 8 plans | deepseek Name on site: gpt-5.1 Deepseek channel [machine translation]Original: Deepseek渠道 Operator pending verification | 1.25 | 10 | — | 3.4375Median price ÷ this price: 1.3× | Full prices and sources |
| 20 | yourapi.cnAsk or discussCollected: Collected this cycle View 2 plans | az-special Name on site: gpt-5.1 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: 1.3× | Full prices and sources |
| 20 | yourapi.cnAsk or discussCollected: Collected this cycle View 2 plans | default Name on site: gpt-5.1 Default group [machine translation]Original: 默认分组 Operator pending verification | 1.25 | 10 | 0.125 | 3.4375Median price ÷ this price: 1.3× | Full prices and sources |
| 20 | zen-ai.topAsk or discussCollected: Collected this cycle View 3 plans | default Name on site: gpt-5.1 ✨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: 1.3× | Full prices and sources |
| 20 | ai.t8star.orgAsk or discussCollected: Collected this cycle View 7 plans 1 more site of the same company
Basis: identical quotes. Counted as one company in the ranking; this is not a legal finding. | default Name on site: gpt-5.1 Default group [machine translation]Original: 默认分组 Operator pending verification | 1.25 | 10 | 0.125 | 3.4375Median price ÷ this price: 1.3× | Full prices and sources |
| 20 | ai.t8star.orgAsk or discussCollected: Collected this cycle View 7 plans 1 more site of the same company
Basis: identical quotes. Counted as one company in the ranking; this is not a legal finding. | svip Name on site: gpt-5.1 Pure Azure [machine translation]Original: 纯Azure Operator pending verification | 1.25 | 10 | 0.125 | 3.4375Median price ÷ this price: 1.3× | Full prices and sources |
| 20 | api.aabao.vipAsk or discussCollected: Collected this cycle View 8 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. | default Name on site: gpt-5.1 Default group (1.0x rate multiplier) [machine translation]Original: 默认分组（1.0倍率） Operator pending verification | 1.25 | 10 | — | 3.4375Median price ÷ this price: 1.3× | Full prices and sources |
| 20 | api.bltcy.topAsk or discussCollected: Collected this cycle View 7 plans 2 more sites 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. | default Name on site: gpt-5.1 Default group [machine translation]Original: 默认分组 Operator pending verification | 1.25 | 10 | 0.125 | 3.4375Median price ÷ this price: 1.3× | Full prices and sources |
| 20 | api.bltcy.topAsk or discussCollected: Collected this cycle View 7 plans 2 more sites 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. | svip Name on site: gpt-5.1 Pure Azure [machine translation]Original: 纯Azure Operator pending verification | 1.25 | 10 | 0.125 | 3.4375Median price ÷ this price: 1.3× | Full prices and sources |
| 20 | api.ifopen.aiAsk or discussCollected: Collected this cycle View 2 plans 2 more sites 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. | default Name on site: gpt-5.1 ⭐ Recommended | all-model automatic load optimization [machine translation]Original: ⭐ 推荐 | 全模型自动负载优化 Operator pending verification | 1.25 | 10 | 0.125 | 3.4375Median price ÷ this price: 1.3× | Full prices and sources |
| 20 | api.nekoapi.comAsk or discussCollected: Collected this cycle View 1 plans 1 more site of the same company
Basis: identical homepage assets, identical quotes. Counted as one company in the ranking; this is not a legal finding. | default Name on site: gpt-5.1 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: 1.3× | Full prices and sources |
| 20 | api.tenzen.aiAsk or discussCollected: Collected this cycle View 3 plans 1 more site 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. | gpt-az Name on site: gpt-5.1 Operator pending verification | 1.25 | 10 | — | 3.4375Median price ÷ this price: 1.3× | Full prices and sources |
| 20 | api.tenzen.aiAsk or discussCollected: Collected this cycle View 3 plans 1 more site 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. | vip Name on site: gpt-5.1 vip group [machine translation]Original: vip分组 Operator pending verification | 1.25 | 10 | — | 3.4375Median price ÷ this price: 1.3× | Full prices and sources |
| 20 | api.tenzen.aiAsk or discussCollected: Collected this cycle View 3 plans 1 more site 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. | ze Name on site: gpt-5.1 ze-claude Operator pending verification | 1.25 | 10 | — | 3.4375Median price ÷ this price: 1.3× | Full prices and sources |
| 20 | api1.zhiyunai168.comAsk or discussCollected: Collected this cycle View 3 plans 1 more site 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. | Azure Name on site: gpt-5.1 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: 1.3× | 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
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 555 recorded prices; 281 can be compared directly (280 ranked, 1 listed separately). Not comparable yet: price not parsed yet 187, scope of the official doc price not confirmed 28, tiered by rules (see Tiered prices) 21, ratio looks unset 17, display unit not confirmed 10, billed per request or another unit 3
223 recent · 15 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 gpt-5.1?
llms.best, group "Codex", 1.0313 USD credit per million total tokens, observed 2026-10-16. 98 sites have comparable prices.
How do I use gpt-5.1 in Claude Code or Codex?
Install Grandet Skill, then say "Connect the cheapest gpt-5.1 API to Claude Code for me". Install Skill →