OpenAI GPT-5.5: API pricing, providers and specs
OpenAI GPT-5.5 is a text model by OpenAI. 26 providers serve it, from $24 to $34.79 /1M; the lowest price is at APIMart.
How OpenAI GPT-5.5 compares
Against the 737 text models on the site priced the same way.
- Pricey for its class: at $24 /1M, its lowest price is above 95% of comparable models (median $1.10).
- Its 1.05M-token context window is larger than 95% of them (median 262K), about 1580 pages of text.
- On LMArena's WebDev board it ranks #45 of the 64 comparable models scored there.
- 26 providers serve it; 93% of comparable models have fewer.
OpenAI GPT-5.5 prices by provider
Every provider's list price, read from its own price page or API. A price marked “from” changes with context length, resolution or mode.
| Provider | Input | Output | Prompt caching | Context |
|---|---|---|---|---|
| APIMart | $4/1M | $24/1M | — | — |
 CometAPI | $4/1M | From$24/1M | — | — |
 Jiekou.AI | $4.75/1M | $28.50/1M | $0.475/1M | — |
| OpenAIOfficial | $5/1M | From$30/1M | $0.50/1M | — |
| ZenMux | $5/1M | From$30/1M | $0.50/1M | 1.05M |
 CrossModel | $5/1M | From$30/1M | $0.50/1M | — |
 Opper | $5/1M | $30/1M | $0.50/1M | — |
 Requesty | $5/1M | From$30/1M | $0.50/1M | 1.05M |
 Ofox | $5/1M | $30/1M | $0.50/1M | 1.05M |
 Venice AI | $5/1M | $30/1M | $0.50/1M | — |
 FastRouter | $5/1M | From$30/1M | $0.50/1M | 1.05M |
 OrcaRouter | $5/1M | $30/1M | $0.50/1M | — |
| Vercel AI Gateway | $5/1M | From$30/1M | $0.50/1M | 1M |
 NEAR AI Cloud | $5/1M | $30/1M | $0.50/1M | 1.05M |
 Prime Inference | $5/1M | $30/1M | — | — |
 AIHubMix | $5/1M | From$30/1M | $0.50/1M | 1.05M |
 Impossibl | $5/1M | From$30/1M | $0.50/1M | — |
| OpenRouter | $5/1M | From$30/1M | $0.50/1M | 1.05M |
| DevPass (LLM Gateway) | $5/1M | From$30/1M | $0.50/1M | — |
 Perplexity | $5/1M | From$30/1M | $0.50/1M | — |
 APIYI | $5/1M | $30/1M | — | — |
 LaoZhang API | $5/1M | $30/1M | — | — |
 CrazyRouter | $5/1M | $30/1M | — | — |
| Atlas Cloud | $5/1M | $30/1M | $0.50/1M | — |
 Azure | $5/1M | From$30/1M | $0.50/1M | — |
 Kenari | $5.52/1M | $34.79/1M | $0.552/1M | — |
- APIMart$24
- CometAPIFrom$24
- Jiekou.AI$28.50
- Opper$30
- Ofox$30
- Venice AI$30
- OrcaRouter$30
- NEAR AI Cloud$30
- Prime Inference$30
- APIYI$30
- LaoZhang API$30
- CrazyRouter$30
Specs
- Type
- Text
- Maker
- OpenAI
- Inputs
- Image, Text
- Outputs
- Text
- Context
- 1.05M≈ 1580 pages of text
- Max output
- 128K
- Capabilities
- Prompt caching, JSON, Reasoning, Tool calling, Vision
- Released
- Apr 24, 2026
- License
- —
- Open weights
- —
- Arena score
- 1513WebDev
Alternatives to OpenAI GPT-5.5
Same kind of model from other makers, at a similar price.
| Model | Lowest price | Context | Arena | Providers |
|---|---|---|---|---|
| OpenAI GPT-5.5this model | $24/1M | 1.05M | 1513 | 26 |
 Gemini 4 Argon | $8/1M | 1.05M | 1673 | 26 |
| Kimi K3 | $8.28/1M | 1.05M | 1655 | 47 |
 Muse Wonder | $16/1M | 1.05M | — | 14 |
| Claude Opus 5.5 | $16/1M | 1M | 1807 | 33 |
| Claude Sonnet 5.5 | $8/1M | 1M | 1767 | 32 |
| Claude-Sonnet-3.5 | $15/1M | — | 1298 | 1 |
| Claude Opus 5 | $20/1M | 1M | 1690 | 32 |
| Claude Sonnet 4.6 | $12/1M | 1M | 1523 | 31 |
More from OpenAI
OpenAI GPT-5.5 FAQ
APIMart, at $24 /1M. 26 providers serve OpenAI GPT-5.5; the table above lists every one with its price.
OpenAI GPT-5.5 reads up to 1.05M tokens per request and writes up to 128K.
We have not found OpenAI GPT-5.5's weights published by its maker.
26 API providers serve OpenAI GPT-5.5. Compare their prices above, or open a provider to see everything it offers.
Can't find what you're looking for? Contact us