API PRICES
OpenAI · gpt-5.1
Provider prices, cheapest first
OpenAI · gpt-5.1 official price: not yet recorded. Cheapest inference provider: OpenRouter, input 1.25, output 10 USD per million tokens. Relays have only older quotes; the lowest is www.cybersol.net, group "GPT Pro HA" 0.4125 USD_CREDIT per million total tokens (credit price, not cash, observed 2026-10-10). 101 sites have comparable prices; 184 sites list this model.Relay blended price uses 75% input and 25% output.
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 |
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 providersRelays
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 |
|---|---|---|---|---|---|---|---|
| Older price | |||||||
| 51 | learn-ai.topAsk or discussCollected: View 1 plans | openai 1.5 | 1.875 | 15 | — | 5.15625 | Full prices and sources |
| 51 | poloai.topAsk or discussCollected: 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 | 1.875 | 15 | 0.1875 | 5.15625 | Full prices and sources |
| 53 | api.futureppo.topAsk or discussCollected: View 1 plans | Codex GPT Codex-only group [machine translation]Original: GPT Codex专用分组 | 2.5 | 20 | 0.25 | 6.875 | Full prices and sources |
| 54 | api.vibelearning.topAsk or discussCollected: 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 | 2.75 | 22 | — | 7.5625 | Full prices and sources |
| 54 | apijing.comAsk or discussCollected: 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 | 2.75 | 22 | 0.275 | 7.5625 | Full prices and sources |
| 56 | ai.ufoai.onlineAsk or discussCollected: 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% | 3 | 24 | 0.3 | 8.25 | Full prices and sources |
| 56 | kpzhu.comAsk or discussCollected: 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 | 3 | 24 | 0.3 | 8.25 | Full prices and sources |
| 58 | www.nuwaflux.comAsk or discussCollected: View 4 plans | gpt-az Openai-az | 3.125 | 25 | — | 8.59375 | Full prices and sources |
| 59 | 9527.codesAsk or discussCollected: 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 | 3.75 | 30 | 0.375 | 10.3125 | Full prices and sources |
| 59 | wolfai.topAsk or discussCollected: 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 | 3.75 | 30 | — | 10.3125 | Full prices and sources |
| 61 | kelaiapi.ccAsk or discussCollected: View 1 plans | vip_2_official oai official relay [machine translation]Original: oai官转 | 4.375 | 35 | — | 12.03125 | Full prices and sources |
| 62 | www.amutes.comAsk or discussCollected: View 1 plans | Openai pure official [machine translation]Group on site: Openai纯官 Openai pure official [machine translation]Original: Openai纯官 | 5.25 | 42 | 0.525 | 14.4375 | Full prices and sources |
| 63 | ai.bytonsec.comAsk or discussCollected: View 2 plans | zen OPENCODE ZEN official 60% of list price [machine translation]Original: OPENCODE ZEN官方6折 | 7.5 | 60 | 0.75 | 20.625 | Full prices and sources |
| 63 | tokenwenwen.comAsk or discussCollected: 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 | 7.5 | 60 | 0.75 | 20.625 | Full prices and sources |
| Flagged · not ranked · Older price | |||||||
| — | ai.bytonsec.comAsk or discussCollected: 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. | 6.42 | 51.0000000000009 | 0.642 | 17.565000000000225 | Full prices and sources |
Special groups · 4 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: 3 rows
- internal or channel key: 1 rows
- new.yihubang.top · Company internal [machine translation]Group on site: 公司内部 · gpt-5.1 · Input 1.25 / Output 10 USD credits / 1M
- aigcbest.top · Test [machine translation]Group on site: 测试 · gpt-5.1 · Input 4.375 / Output 35 USD credits / 1M
- api.ifopen.ai · Test [machine translation]Group on site: 测试 · gpt-5.1 · Input 4.375 / Output 35 USD credits / 1M
- 35.aigcbest.top · Test [machine translation]Group on site: 测试 · gpt-5.1 · Input 10 / Output 80 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: 96,427 prices from 839 sites (about 733 companies). 88,950 are ranked, from 826 sites (about 720 companies); 7,477 more are listed separately and not ranked. Prices collected up to 2026-10-10.
This model has 818 recorded prices; 395 can be compared directly (369 ranked, 26 listed separately). Not comparable yet: new price under review; showing the previous one 156, price not parsed yet 96, scope of the official doc price not confirmed 60, ratio looks unset 34, tiered by rules (see Tiered prices) 31, display unit not confirmed 29, billed per request or another unit 17
0 recent · 319 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-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.