OpenAI: GPT-5.5 Pro
openai/gpt-5.5-pro
openaiTool callingReasoningImage input
Input
$30.00
Official vendor price / million tokens
Output
$180.00
Official vendor price / million tokens
Blended (coding)
$43.64
128K context · 10:1 · 80% cache hits
Uptime 7d
99.9%
Median across providers over the last 7 days
For requests over 272K context, the whole request is billed at the higher rate: input $60.00, output $270.00
Context
1.1M
Providers
2
Released
2026-04-24
Where to buy
Vendor APIs and common platforms. Prices are USD per million tokens.
| Provider | Input | Output | Cache read | Cache write | Uptime 7d |
|---|---|---|---|---|---|
| OpenAIOfficial | $30.00 | $180.00 | — | — | — |
| OpenRouterPlatformAggregates 2 providers | $22.50 | $135.00 | Free | Free | 99.9% |