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)
- 1.0313 USD credit/million total tokensllms.best "Codex" ·
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: llms.best, group "Codex" 1.0313 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
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: 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 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 | |||||||
| 51 | 9527.codesAsk or discussCollected: Collected this cycle View 1 plans 4 more sites 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 Azure-GPT Operator pending verification | 3.75 | 30 | 0.375 | 10.313Median price ÷ this price: 0.3× | Full prices and sources |
| 51 | wolfai.topAsk or discussCollected: Collected this cycle View 1 plans | svip Name on site: gpt-5.1-high Claude/OpenAI/Grok | official native API Key direct connection [machine translation]Original: Claude/OpenAI/Grok｜官方原生 API Key 直连 Operator pending verification | 3.75 | 30 | — | 10.313Median price ÷ this price: 0.3× | Full prices and sources |
| 53 | kelaiapi.ccAsk or discussCollected: Collected this cycle View 1 plans | vip_2_official oai official relay [machine translation]Original: oai官转 Operator pending verification | 4.375 | 35 | — | 12.031Median price ÷ this price: 0.3× | Full prices and sources |
| 53 | www.nuwaflux.comAsk or discussCollected: Collected this cycle View 2 plans | gpt-az select [machine translation]Group on site: gpt-az精品 All models covered, supports 1m context [machine translation]Original: 全模型覆盖支持1m上下文 Operator pending verification | 4.375 | 35 | — | 12.031Median price ÷ this price: 0.3× | Full prices and sources |
| 55 | www.amutes.comAsk or discussCollected: Collected this cycle View 1 plans | Openai pure official [machine translation]Group on site: Openai纯官 Openai pure official [machine translation]Original: Openai纯官 Operator pending verification | 5.25 | 42 | 0.525 | 14.438Median price ÷ this price: 0.2× | Full prices and sources |
| 56 | ai.bytonsec.comAsk or discussCollected: Collected this cycle View 2 plans | zen OPENCODE ZEN official 60% of list price [machine translation]Original: OPENCODE ZEN官方6折 Operator pending verification | 7.5 | 60 | 0.75 | 20.625Median price ÷ this price: 0.2× | Full prices and sources |
| 56 | tokenwenwen.comAsk or discussCollected: Collected this cycle View 1 plans | OpenAI Gpt official direct connection [machine translation]Group on site: OpenAI Gpt官方直连 OpenAI Gpt official direct connection [machine translation]Original: OpenAI Gpt官方直连 Operator pending verification | 7.5 | 60 | 0.75 | 20.625Median price ÷ this price: 0.2× | Full prices and sources |
| 58 | dli.liAsk or discussCollected: Collected this cycle View 1 plans | openai-api OpenAI API official API direct connection [machine translation]Original: OpenAI API 官方 API 直连 Operator pending verification | 8.75 | 56 | 0.875 | 20.563Median price ÷ this price: 0.2× | Full prices and sources |
| Older price | |||||||
| 01 | api.openai-ch.topAsk or discussCollected: Carried previous price Not updated this time; showing the previous price View 5 plans | Azure-Ⅰ Azure 0.2x rate multiplier group [machine translation]Original: Azure 0.2倍率分组 Operator pending verification | 0.25 | 2 | 0.025 | 0.6875Median price ÷ this price: 5× | Full prices and sources |
| 02 | kg-api.cloudAsk or discussCollected: Carried previous price Not updated this time; showing the previous price View 13 plans | vip Reverse-engineered, usage-based (vip) [machine translation]Original: 逆向按量(vip) Operator pending verification | 1 | 8 | 0.1 | 2.75Median price ÷ this price: 1.3× | Full prices and sources |
| 03 | newapi.prorisehub.comAsk or discussCollected: Carried previous price Not updated this time; showing the previous price View 3 plans | default ⚠️ Default general group: can call every model on the site, don't use it if you don't understand!!! Billing is very expensive!!! [machine translation]Original: ⚠️ 默认通用分组：可调用全站所有模型，不懂别用！！！计费很贵！！！ Operator pending verification | 1.25 | 10 | 0.125 | 3.4375Median price ÷ this price: 1× | Full prices and sources |
| Flagged · not ranked · Recent price | |||||||
| — | ai.bytonsec.comAsk or discussCollected: Collected this cycle View 2 plans | zen Name on site: zen/gpt-5.1 OPENCODE ZEN official 60% of list price [machine translation]Original: OPENCODE ZEN官方6折 Note: number precision issue. This price is not ranked or counted. Operator pending verification | 6.42 | 51 | 0.642 | 17.565Median price ÷ this price: 0.2× | 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.
Sources not accepted this cycle and reasons
FAQ
Which API is cheapest for OpenAI · gpt-5.1?
llms.best, group "Codex", 1.0313 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 →