OpenAI
GPT-5.5
Default frontier GPT for coding, computer use, research, and knowledge work
Model facts
- Context window
- 1.05M tokens
- Maximum output
- 128K tokens
- Cheapest paid input
- $0.188 per 1M tokens
- Cheapest paid output
- $1.12 per 1M tokens
- Open weights
- no
- Providers
- 54
Capabilities and modalities
reasoning, tool calling, structured output, attachments, temperature control, text, image, pdf.
Artificial Analysis benchmarks
Compare this model on the full LLM benchmark leaderboard.
| Configuration | AAI | Coding | Math | Output tokens/s |
|---|---|---|---|---|
| xhigh | 56.3 | 74.9 | not measured | not measured |
| high | 54.7 | 71.6 | not measured | not measured |
| medium | 51.4 | 71.5 | not measured | not measured |
| low | 44.5 | 60.9 | not measured | not measured |
| Non-reasoning | 35.8 | 56.5 | not measured | not measured |
Observed price history
- 2026-08-24: $0.188 input / $1.12 output per 1M tokens
API providers
- GitLab Duo (Agentic Chat) — model id duo-chat-gpt-5-5; free input / free output per 1M tokens; provider documentation
- Kenari — model id gpt-5-5; free input / free output per 1M tokens; provider documentation
- UnoRouter — model id gpt-5.5:free; free input / free output per 1M tokens; provider documentation
- UnoRouter — model id gpt-5.5; $0.188 input / $1.12 output per 1M tokens; provider documentation
- Xpersona — model id gpt-5.5; $1.5 input / $12 output per 1M tokens; provider documentation
- FrogBot — model id gpt-5-5; $2.5 input / $15 output per 1M tokens; provider documentation
- OpenRouter (batch) — model id openai/gpt-5.5:batch; $2.5 input / $15 output per 1M tokens; provider documentation
- Xpersona — model id xpersona-gpt-5.5; $3 input / $18 output per 1M tokens; provider documentation
- Poe — model id openai/gpt-5.5; $4.55 input / $27.27 output per 1M tokens; provider documentation
- AI-ROUTER — model id gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- AIHubMix — model id gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- Abacus — model id gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- Azure — model id gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- Azure Cognitive Services — model id gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- Cloudflare AI Gateway — model id openai/gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- CrossModel — model id openai/gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- DaoXE — model id gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- Databricks — model id databricks-gpt-5-5; $5 input / $30 output per 1M tokens; provider documentation
- DevPass (LLM Gateway) — model id gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- DigitalOcean (OpenAI) — model id openai-gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- Eden AI — model id openai/gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- FastRouter — model id openai/gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- FreeModel — model id gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- GMI Cloud — model id openai/gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- GitHub Copilot — model id gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- HPC-AI — model id openai/gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- Impossibl — model id openai/gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- Kilo Gateway — model id openai/gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- LLM Gateway (Azure) — model id azure/gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- LLM Gateway (OpenAI) — model id openai/gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- Merge Gateway — model id openai/gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- NEAR AI Cloud — model id openai/gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- NanoGPT — model id openai/gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- Neon — model id gpt-5-5; $5 input / $30 output per 1M tokens; provider documentation
- Ofox — model id openai/gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- OpenAI — model id gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- OpenCode Zen — model id gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- OpenRouter — model id openai/gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- Opper — model id openai/gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- OrcaRouter — model id openai/gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- Perplexity Agent — model id openai/gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- Pioneer — model id gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- Requesty (EU) — model id gpt-5.5@eu; $5 input / $30 output per 1M tokens; provider documentation
- SAP AI Core — model id gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- Vercel AI Gateway — model id openai/gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- Vivgrid — model id gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- ZenMux — model id openai/gpt-5.5; $5 input / $30 output per 1M tokens; provider documentation
- Amazon Bedrock — model id openai.gpt-5.5; $5.5 input / $33 output per 1M tokens; provider documentation
- Requesty — model id gpt-5.5; $5.5 input / $33 output per 1M tokens; provider documentation
- Venice AI — model id openai-gpt-55; $6.25 input / $37.5 output per 1M tokens; provider documentation
- Vercel AI Gateway — model id openai/gpt-5.5-fast; $12.5 input / $75 output per 1M tokens; provider documentation
- Arena — model id gpt-5.5; not published input / not published output per 1M tokens; provider documentation
- Model Oracle AI — model id gpt-5.5; not published input / not published output per 1M tokens; provider documentation
- Snowflake Cortex — model id openai-gpt-5.5; not published input / not published output per 1M tokens; provider documentation