All models
OpenAI
GPT-5.5 Pro frontier
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...
Input / 1M
$30.00
USD per million tokens
Output / 1M
$180.00
USD per million tokens
Est. cost / token
$0.0000675
$67.50 per 1M, 3:1 mix
Context window
1.05M
max output 128K
Major features
VisionBatchPDFCachingReasoningJSON schemaToolsWeb search
Task suitability (heuristic 1–5, not a benchmark)
- coding5
- reasoning5
- math5
- summarization5
- extraction5
- classification5
- chat5
- creative5
- translation5
- vision5
- long context5
- agentic5
Price history
| Recorded | Input | Output | Cached | Source |
|---|---|---|---|---|
| 2026-11-05 03:20 | $30.00 | $180.00 | — | litellm+openrouter |
A row is added whenever a sync detects a price change. Vendor pricing source
Pricing (USD per 1M tokens)
- Input
- $30.00
- Output
- $180.00
- Batch input
- $15.00
- Batch output
- $90.00
- Blended (3:1)
- $67.50
Details
- Company
- OpenAI
- Version
- 5.5
- Family
- GPT
- Released
- 2026-04-24
- Parameters
- Undisclosed
- Max output
- 128K
- Open weights
- No
- Inputs
- file, image, text
- Last synced
- 29 min ago