GPT-5.5 is an AI model by OpenAI. View detailed benchmark scores, pricing data, and performance metrics on Serenities AI Models.
Specifications last checked against the provider on . Benchmark scores carry their own source, linked beside each number.
General Benchmarks
Artificial Analysis composite intelligence score across 10 sub-benchmarks
Artificial Analysis (via OpenRouter)Coding Benchmarks
Human preference ELO for building things — websites, UI, games, charts, SVG
Design Arena (via OpenRouter)Artificial Analysis composite coding score
Artificial Analysis (via OpenRouter)Human preference ELO for building a working web page from a brief
Design Arena (via OpenRouter)Reasoning Benchmarks
Artificial Analysis composite score for multi-step tool-using tasks
Artificial Analysis (via OpenRouter)Multi-turn service agent making tool calls under strict policy constraints
OpenRouter (measured)Cost Benchmarks
Cost per 1M cached input tokens — the price that actually applies to a long agent conversation
OpenRouter APIContext Benchmarks
Available from 46 providers
The same model costs different amounts depending on who serves it. You can bring your own key for 5 of these — connect it here.
| Provider | Input / 1M | Output / 1M | Cached in | Context | Your key |
|---|---|---|---|---|---|
| Kenari | $0 | $0 | — | 1.1M | — |
| UnoRouter | $0.1875 | $1.125 | — | 1.1M | — |
| Xpersona | $1.5 | $12 | $0.15 | 1.1M | — |
| FrogBot | $2.5 | $15 | $0.25 | 272K | — |
| Poe | $4.5455 | $27.2727 | $0.4545 | 400K | — |
| 302.AI | $5 | $30 | — | 1.1M | — |
| Abacus | $5 | $30 | $0.5 | 1.0M | — |
| AIHubMix | $5 | $30 | $0.5 | 1.1M | — |
| AI-ROUTER | $5 | $30 | $0.5 | 1.1M | — |
| Azure | $5 | $30 | $0.5 | 1.1M | Supported |
| Azure Cognitive Services | $5 | $30 | $0.5 | 1.1M | — |
| Cloudflare AI Gateway | $5 | $30 | — | 1.0M | — |
| CrossModel | $5 | $30 | $0.5 | 1.1M | — |
| DaoXE | $5 | $30 | $0.5 | 1.1M | — |
| Databricks | $5 | $30 | $0.5 | 1.1M | — |
| DevPass (LLM Gateway) | $5 | $30 | $0.5 | 1.1M | — |
| Eden AI | $5 | $30 | $0.5 | 1.1M | — |
| FastRouter | $5 | $30 | — | 1.1M | — |
| FreeModel | $5 | $30 | $0.5 | 1.1M | — |
| GitHub Copilot | $5 | $30 | $0.5 | 1.1M | — |
| GMI Cloud | $5 | $30 | $0.5 | 1.1M | — |
| HPC-AI | $5 | $30 | $0.5 | 1.1M | — |
| Impossibl | $5 | $30 | $0.5 | 1.1M | — |
| Kilo Gateway | $5 | $30 | $0.5 | 1.1M | — |
| LLM Gateway | $5 | $30 | $0.5 | 1.1M | — |
| Merge Gateway | $5 | $30 | $0.5 | 1.1M | — |
| NanoGPT | $5 | $30 | $0.5 | 1.1M | — |
| NEAR AI Cloud | $5 | $30 | $0.5 | 1.1M | — |
| Neon | $5 | $30 | $0.5 | 1.1M | — |
| Ofox | $5 | $30 | $0.5 | 1.1M | — |
| OpenAI | $5 | $30 | $0.5 | 1.1M | Supported |
| OpenCode Zen | $5 | $30 | $0.5 | 1.1M | — |
| OpenRouter | $5 | $30 | $0.5 | 1.1M | Supported |
| Opper | $5 | $30 | $0.5 | 1.1M | — |
| OrcaRouter | $5 | $30 | $0.5 | 1.1M | — |
| Perplexity Agent | $5 | $30 | $0.5 | 1.1M | — |
| Pioneer | $5 | $30 | $0.5 | 1.1M | — |
| SAP AI Core | $5 | $30 | $0.5 | 1.1M | — |
| Vercel AI Gateway | $5 | $30 | $0.5 | 1.0M | Supported |
| Vivgrid | $5 | $30 | $0.5 | 1.1M | — |
| ZenMux | $5 | $30 | $0.5 | 1.1M | — |
| Amazon Bedrock | $5.5 | $33 | $0.55 | 272K | Supported |
| Requesty | $5.5 | $33 | $0.55 | 1.1M | — |
| Venice AI | $6.25 | $37.5 | $0.625 | 1.0M | — |
| Model Oracle AI | — | — | — | 1.1M | — |
| Snowflake Cortex | — | — | — | 1.1M | — |
GPT-5.5 — Benchmark Scores Overview
Scores normalized to percentage scale for visual comparison. ELO scores mapped to 0-100 range (1100-1500).
Compare GPT-5.5 With
GPT-5.5 — Frequently Asked Questions
How much does GPT-5.5 cost?
GPT-5.5 costs $5.0 per 1M input tokens and $30.0 per 1M output tokens. This places it in the premium pricing tier.
What is the context window of GPT-5.5?
GPT-5.5 has a context window of 1.1M tokens. This determines how much text, conversation history, and code the model can process in a single request.
Who created GPT-5.5?
GPT-5.5 was created by OpenAI. It is classified as a flagship model in our catalogue.
Is GPT-5.5 open source?
No, GPT-5.5 is a proprietary model. It is available through OpenAI's API and compatible providers.