Openai
OpenAI: GPT-5.5 Pro
openai/gpt-5.5-pro
Input / M
Output / M
Context
Max Output
128K
Usage
Unranked
Quality
Unscored
Providers
1
Best Uptime 30m
Unavailable
Released
Apr 24, 2026
Modalities
file, image, text
About
GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads. It features a 1M+ token context window (922K input, 128K output) with support for...
Capabilities
Vision
Tools
Reasoning
Streaming
JSON Mode
Providers · 1
Per-provider pricing, uptime
| Provider | Input/M | Output/M | Context | Max Out | Quant | Uptime 30m |
|---|---|---|---|---|---|---|
| OpenAIRecommended OpenAI | openai/gpt-5.5-pro-20260423 | $30.00 | $180.00 | 1.1M | 128K | unknown | — |
Performance History
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Price History
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First seen 3d ago · Last verified 7m ago