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API PRICES

OpenAI · gpt-5.5

Provider prices, cheapest first

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Price comparison

Official (cash)
Input 5 / output 30 USD/million tokensOpenAI ·
Lowest inference provider (cash)
Input 5 / output 30 USD/million tokensOpenRouter · Aggregator ·
Lowest relay (credit)
Older reference: 0.61875 USD credit/million total tokenssite.whyapi.top "codex_bt" ·

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-5.5 official price: input 5, output 30 USD per million tokens (OpenAI, observed 2026-10-17). Cheapest inference provider: OpenRouter, input 5, output 30 USD per million tokens. Relays have only older quotes; the lowest is site.whyapi.top, group "codex_bt" 0.61875 USD_CREDIT per million total tokens (credit price, not cash, observed 2026-10-03). 364 sites have comparable prices; 814 sites list this model.Relay blended price uses 75% input and 25% output.

Price ranges per million tokens

Official cash prices · Lowest 11.25 · median 15 · highest 18.75 · 2 quotes USD / per million tokens

Inference provider cash prices · Lowest 11.25 · median 11.25 · highest 11.25 · 1 quotes USD / per million tokens

Official price

ProviderInputOutputCache readCache writeUnitObservedConditions and source
OpenAI5300.5—USD / 1M tokens
Official source
OpenAI10451—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

ProviderInputOutputCache readCache writeUnitObservedConditions and sourcevs official
OpenRouter · Aggregator5300.5—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.

Filtering by provider: site.whyapi.top

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Blended price = input × 75% + output × 25%, without cache.

Price range: lowest — · median — · highest — (0 quotes, USD credits per million total tokens)

sites have comparable prices364814 sites list this model; approximately 1 operators
Older lowest input price (reference)0.275USD credits / 1M
Median of each provider’s lowest price0.275USD credits / 1M

Relays

Prices below are in site credit, not cash.

#ProviderPlan / conditionsInput ↑USD credits / 1MOutput USD credits / 1MCache readUSD credits / 1MBlendedUSD credits / 1MDetails
Older price
01site.whyapi.topAsk or discussCollected:
Carried previous price
Not updated this time; showing the previous price
View 9 plans
codex_bt
Perk special price [machine translation]Original: 福利特惠
Operator pending verification
0.2751.650.02750.61875Full prices and sources
02site.whyapi.topAsk or discussCollected:
Carried previous price
Not updated this time; showing the previous price
View 9 plans
codex_pro_plus_02
Mixed pool 02 [machine translation]Original: 混池 02
Operator pending verification
0.633.780.0631.4175Full prices and sources
03site.whyapi.topAsk or discussCollected:
Carried previous price
Not updated this time; showing the previous price
View 9 plans
codex_pro_plus
Mixed pool 01 [machine translation]Original: 混池 01
Operator pending verification
0.643.840.0641.44Full prices and sources
04site.whyapi.topAsk or discussCollected:
Carried previous price
Not updated this time; showing the previous price
View 9 plans
codex_pro
Fairly good experience [machine translation]Original: 体验较好
Operator pending verification
0.754.50.0751.6875Full prices and sources
05site.whyapi.topAsk or discussCollected:
Carried previous price
Not updated this time; showing the previous price
View 9 plans
codex_backstop
Premium, best stability/speed, fairly good for retail users [machine translation]Original: 尊享 最佳稳定/速度 散户体验较好
Operator pending verification
160.12.25Full prices and sources
06site.whyapi.topAsk or discussCollected:
Carried previous price
Not updated this time; showing the previous price
View 9 plans
codex_backstop_pro
Less stable than premium [machine translation]Original: 稳定性低于尊享
Operator pending verification
1.056.30.1052.3625Full prices and sources
07site.whyapi.topAsk or discussCollected:
Carried previous price
Not updated this time; showing the previous price
View 9 plans
codex_uncensored
Low cache on account switch, pro with 1 concurrency per 1 account, can do pelican-bike test, not dumbed down [machine translation]Original: 切号缓存低,1号1并发pro, 可测鹈鹕骑自行车,不降智
Operator pending verification
1.257.50.1252.8125Full prices and sources
08site.whyapi.topAsk or discussCollected:
Carried previous price
Not updated this time; showing the previous price
View 9 plans
codex_official_key
Official key, not dumbed down, can do pelican-bike test [machine translation]Original: 官key不降智,可测鹈鹕骑车
Operator pending verification
1.7510.50.1753.9375Full prices and sources
09site.whyapi.topAsk or discussCollected:
Carried previous price
Not updated this time; showing the previous price
View 9 plans
default
Default group [machine translation]Original: 默认分组
Operator pending verification
5300.511.25Full prices and sources
Special groups · 13 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.

  • near-zero-ratio group: 6 rows
  • unrecognized flag USAGE_IMAGE_ONLY: 3 rows
  • test or debug group: 2 rows
  • Free declaration, listed separately: 1 rows
  • top-up or membership gated: 1 rows
  • zero-ratio group: 1 rows
  • api.nexl.cn · vip · gpt-5.5 · Input 0 / Output 0 USD credits / 1M
  • api.pezayo.com · codex anthropic · gpt-5.5 · Input 0.015 / Output 0.09 USD credits / 1M
  • apiroute.top · gpt-plus · gpt-5.5 · Input 0.0675 / Output 0.405 USD credits / 1M
  • apiroute.top · gpt-pro · gpt-5.5 · Input 0.11 / Output 0.66 USD credits / 1M
  • bmodels.top · default · gpt-5.5 · Input 0.128 / Output 0.8 USD credits / 1M
  • api.pezayo.com · codex · gpt-5.5 · Input 0.15 / Output 0.9 USD credits / 1M
  • newtonrouter.com · Gpt Pro 20x · gpt-5.5 · Input 0.175 / Output 1.05 USD credits / 1M
  • bikip.pro · ductest · gpt-5.5-xhigh · Input 1.5 / Output 9 USD credits / 1M
  • bikip.pro · ductest · gpt-5.5 · Input 1.5 / Output 9 USD credits / 1M
  • apiapi.gptshare666.pro · Image-generation-only API [machine translation]Group on site: 画图专用API · gpt-5.5 · Input 2.5 / Output 15 USD credits / 1M
View all 13 rows →
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 2875 recorded prices; 1026 can be compared directly (1008 ranked, 18 listed separately). Not comparable yet: tiered by rules (see Tiered prices) 1034, price not parsed yet 569, ratio looks unset 74, display unit not confirmed 67, billed per request or another unit 41, scope of the official doc price not confirmed 26, new price under review; showing the previous one 2

0 recent · 9 stale (older than 10 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.

Full methodology →

Sources not accepted this cycle and reasons

FAQ

Which API is cheapest for OpenAI · gpt-5.5?

No valid quotes within 10 days. Older quotes are listed as reference prices.

What is the official price for OpenAI · gpt-5.5?

Input 5, output 30 USD per million tokens, checked 2026-10-17. Lowest inference provider: OpenRouter, input 5, output 30 USD per million tokens.

How do I use OpenAI · gpt-5.5 in Claude Code or Codex?

Install Grandet Skill, then say "Connect the cheapest OpenAI · gpt-5.5 API to Claude Code for me". Install Skill →