GPT-5.5
OpenAIProprietary1.05M context
GPT-5.5 is a proprietary model from OpenAI with a 1.05M-token context window. 6 providers list it, from $5.00 per million input tokens and $30.00 per million output tokens (Databricks and 4 others).
- Maker
- OpenAI
- Licence
- Proprietary
- Context window
- 1.05M
- Providers listed
- 6
- Lowest input, per 1M
- $5.00
- Lowest output, per 1M
- $30.00
- OpenAI's own API, per 1M
- $5.00 in · $30.00 out
- Effort settings
- Non-reasoning, Low, Medium, High, Xhigh
Providers serving GPT-5.5
Cheapest first, by the blended rate of three input tokens to one output token. Prices in US dollars per million tokens, as of 26 Oct 2026.
| Provider | Input | Output | Context | Tools | JSON mode | OpenAI-compatible | Model ID |
|---|---|---|---|---|---|---|---|
Databricks Billed in DBUs; converted at Databricks' $0.07 per DBU (AWS). | $5.00 | $30.00 | 1.05M | Yes | Yes | Yes | databricks-gpt-5-5 |
GMI | $5.00 | $30.00 | 1.05M | Yes | Yes | Yes | openai/gpt-5.5 |
Microsoft Azure | $5.00 | $30.00 | 1.05M | Yes | Yes | No | gpt-5.5 |
OpenAI | $5.00 | $30.00 | 1.05M | Yes | Yes | Yes | gpt-5.5 |
Snowflake Billed in AI credits; converted at Snowflake's $2.00 per credit (Global routing). | $5.00 | $30.00 | 1.05M | Yes | Yes | Yes | openai-gpt-5.5 |
Amazon Bedrock | $5.50 | $33.00 | 1M | Yes | Yes | No | openai.gpt-5.5 |
Benchmark scores
Published scores only, each linked to its source. Compare every model in Bench rankings
| Benchmark | Non-reasoning | Low | Xhigh |
|---|---|---|---|
GPQA Diamond PhD-level scientific reasoning | 77.3% | 90.7% | 93.6%v |
MMMU Pro Visual reasoning | — | — | 81.2%v |
APEX-Agents Agentic office work | — | — | 55.1% |
Humanity's Last Exam Reasoning & knowledge | — | — | 41.4%v |
τ²-Bench Telecom Agentic tool use | — | — | 98%v |
τ³-Banking Agentic tool use (banking) | — | — | 44.6% |
Terminal-Bench v2.1 Agentic coding & terminal use | — | — | 78% |