API PRICES
OpenAI · gpt-5.1-codex
Provider prices, cheapest first
OpenAI · gpt-5.1-codex official price: not yet recorded. 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). 68 sites have comparable prices; 120 sites list this model.Relay blended price uses 75% input and 25% output.
Price ranges 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 5.1563 · highest 35.131 · 268 quotes USD / per million tokens, site credit
Relay CNY credit prices · Lowest 3.0938 · median 7.6258 · highest 24.406 · 24 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.
Inference providers
| Provider | Input | Output | Cache read | Cache write | Unit | Observed | Conditions and source |
|---|---|---|---|---|---|---|---|
| OpenRouter · Aggregator | 1.25 | 10 | 0.13 | — | 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.
Price range: lowest 1.0313 · median 5.1563 · highest 35.131 (268 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 | |||||||
| 100 | cnapi.kksj.orgAsk or discussCollected: Collected this cycle View 4 plans | azpro More az concurrency group (azpro) [machine translation]Original: 更多的az并发分组(azpro) Operator pending verification | 1.5 | 12 | — | 4.125Median price ÷ this price: 1.3× | Full prices and sources |
| 100 | api1.zhiyunai168.comAsk or discussCollected: Collected this cycle View 2 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 premium [machine translation]Group on site: Azure高级 All models stably supplied, key pool, high concurrency, supports, gpt-5.6.gpt-6-astra, gpt-image-2 native 4k [machine translation]Original: 全模型稳定供应，key池，高并发，支持，gpt-5.6.gpt-6-astra，gpt-image-2原生4k Operator pending verification | 1.5 | 12 | — | 4.125Median price ÷ this price: 1.3× | Full prices and sources |
| 103 | ai.comfly.orgAsk or discussCollected: Collected this cycle View 18 plans 1 more site of the same companyBasis: identical quotes. Counted as one company in the ranking; this is not a legal finding. | default Name on site: gpt-5.1-codex-medium Default group [machine translation]Original: 默认分组 Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 103 | ai.comfly.orgAsk or discussCollected: Collected this cycle View 18 plans 1 more site of the same companyBasis: identical quotes. Counted as one company in the ranking; this is not a legal finding. | default Name on site: gpt-5.1-codex-high Default group [machine translation]Original: 默认分组 Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 103 | ai.comfly.orgAsk or discussCollected: Collected this cycle View 18 plans 1 more site of the same companyBasis: identical quotes. Counted as one company in the ranking; this is not a legal finding. | svip Name on site: gpt-5.1-codex-medium Pure Azure [machine translation]Original: 纯Azure Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 103 | ai.comfly.orgAsk or discussCollected: Collected this cycle View 18 plans 1 more site of the same companyBasis: identical quotes. Counted as one company in the ranking; this is not a legal finding. | svip Name on site: gpt-5.1-codex-high Pure Azure [machine translation]Original: 纯Azure Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 103 | api.bltcy.aiAsk or discussCollected: Collected this cycle View 18 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. | default Name on site: gpt-5.1-codex-medium Default group [machine translation]Original: 默认分组 Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 103 | api.bltcy.aiAsk or discussCollected: Collected this cycle View 18 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. | default Name on site: gpt-5.1-codex-high Default group [machine translation]Original: 默认分组 Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 103 | api.bltcy.aiAsk or discussCollected: Collected this cycle View 18 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. | svip Name on site: gpt-5.1-codex-high Pure Azure [machine translation]Original: 纯Azure Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 103 | api.bltcy.aiAsk or discussCollected: Collected this cycle View 18 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. | svip Name on site: gpt-5.1-codex-medium Pure Azure [machine translation]Original: 纯Azure Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 103 | cnapi.kksj.orgAsk or discussCollected: Collected this cycle View 4 plans | azplus Pure az stable group, az only (azplus) [machine translation]Original: 纯az稳定分组，只有az(azplus) Operator pending verification | 1.75 | 14 | — | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 103 | ai.t8star.orgAsk or discussCollected: Collected this cycle View 18 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-codex-high Default group [machine translation]Original: 默认分组 Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 103 | ai.t8star.orgAsk or discussCollected: Collected this cycle View 18 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-codex-medium Default group [machine translation]Original: 默认分组 Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 103 | ai.t8star.orgAsk or discussCollected: Collected this cycle View 18 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-codex-high Pure Azure [machine translation]Original: 纯Azure Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 103 | ai.t8star.orgAsk or discussCollected: Collected this cycle View 18 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-codex-medium Pure Azure [machine translation]Original: 纯Azure Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 103 | api.bltcy.topAsk or discussCollected: Collected this cycle View 18 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-codex-high Default group [machine translation]Original: 默认分组 Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 103 | api.bltcy.topAsk or discussCollected: Collected this cycle View 18 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-codex-medium Default group [machine translation]Original: 默认分组 Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 103 | api.bltcy.topAsk or discussCollected: Collected this cycle View 18 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-codex-high Pure Azure [machine translation]Original: 纯Azure Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 103 | api.bltcy.topAsk or discussCollected: Collected this cycle View 18 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-codex-medium Pure Azure [machine translation]Original: 纯Azure Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 103 | one-api.bltcy.topAsk or discussCollected: Collected this cycle View 18 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-codex-high Default group [machine translation]Original: 默认分组 Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 103 | one-api.bltcy.topAsk or discussCollected: Collected this cycle View 18 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-codex-medium Default group [machine translation]Original: 默认分组 Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 103 | one-api.bltcy.topAsk or discussCollected: Collected this cycle View 18 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-codex-high Pure Azure [machine translation]Original: 纯Azure Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 103 | one-api.bltcy.topAsk or discussCollected: Collected this cycle View 18 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-codex-medium Pure Azure [machine translation]Original: 纯Azure Operator pending verification | 1.75 | 14 | 0.175 | 4.8125Median price ÷ this price: 1.1× | Full prices and sources |
| 124 | ai.comfly.orgAsk or discussCollected: Collected this cycle View 18 plans 1 more site of the same companyBasis: identical quotes. Counted as one company in the ranking; this is not a legal finding. | AZ-premium quality [machine translation]Group on site: AZ-优质 Pure Azure-premium quality, supports o1, o3 [machine translation]Original: 纯Azure-优质，支持o1、o3 Operator pending verification | 1.875 | 15 | 0.1875 | 5.1563Median price ÷ this price: 1× | Full prices and sources |
| 124 | api.bltcy.aiAsk or discussCollected: Collected this cycle View 18 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-premium quality [machine translation]Group on site: AZ-优质 Pure Azure-premium quality, supports o1, o3 [machine translation]Original: 纯Azure-优质，支持o1、o3 Operator pending verification | 1.875 | 15 | 0.1875 | 5.1563Median price ÷ this price: 1× | 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-codex · 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 612 recorded prices; 321 can be compared directly (320 ranked, 1 listed separately). Not comparable yet: price not parsed yet 150, scope of the official doc price not confirmed 72, ratio looks unset 45, display unit not confirmed 6, tiered by rules (see Tiered prices) 2, new price under review; showing the previous one 1
268 recent · 26 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-codex?
llms.best, group "Codex", 1.0313 USD credit per million total tokens, observed 2026-10-16. 68 sites have comparable prices.
How do I use OpenAI · gpt-5.1-codex in Claude Code or Codex?
Install Grandet Skill, then say "Connect the cheapest OpenAI · gpt-5.1-codex API to Claude Code for me". Install Skill →