OpenRouter
Catalog quote- Input
- $30.00
- Output
- $180.00
openaiListed Apr 24, 2026
OpenAI: GPT-5.5 Pro
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...
Context window1.1M
Max output128K
Provider endpoints4
Benchmark results0
Measured performance
All leaderboards ↗Benchmark results
No published results in this index yet
Scores appear here when an evaluation matches this exact model.
Access & cost
6 quotesPrices across providers
Your token mix
USD · listed token ratesExperiential
Standard list rate
- Input
- $30.00
- Output
- $180.00
Catalog list rate. Plan allowances and temporary discounts are separate.
- Input
- $15.00
- Output
- $90.00
Max prompt 922000 tokens · Web search $0.01/search
OpenAI
via OpenRouteropenai/flex · tier=flex · prompt over 272000 tokens · rate option 1
Conditional rate- Input
- $30.00
- Output
- $135.00
Max prompt 922000 tokens · Web search $0.01/search · A rate applies when all its listed conditions match. Dates and times use UTC.
- Input
- $30.00
- Output
- $180.00
Max prompt 922000 tokens · Web search $0.01/search
- Input
- $60.00
- Output
- $270.00
Max prompt 922000 tokens · Web search $0.01/search · A rate applies when all its listed conditions match. Dates and times use UTC.
Model specifications
- Developer
- openai
- Modality
- Language
- Context
- 1,050,000 tokens
- Maximum output
- 128,000 tokens
- Weights
- Not reported
- Provider listed
- Apr 24, 2026
- First discovered
- Oct 16, 2026
Exact identities
- openrouter
openai/gpt-5.5-pro - experiential
gpt-5.5-pro
Sources
Updated Oct 17, 2026
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