OpenAI
GPT-5.5
GPT-5.5 by OpenAI — compare inference API pricing across providers.
Input from
$2.50 / 1M tokens
across 3 providers
API Pricing
Cheapest on OpenAI — 43% below avg| Provider | Input / 1M | Output / 1M | Cached / 1M |
|---|---|---|---|
| $2.50 | $15.00 | $0.250 | |
| $5.00 | $30.00 | $0.500 | |
| $5.00 | $30.00 | $0.500 | |
| $5.00 | $30.00 | $0.500 |
Prices updated daily. Last check: Aug 30, 2026
GPT-5.5 pricing by provider
Input, output, and batch rates, plus alternatives, for one provider at a time.
Performance & Benchmarks
Source: Artificial Analysis →Intelligence
56.3 / 100
Coding
74.9 / 100
Reasoning & Knowledge
- GPQA Diamond93.5%
- Humanity's Last Exam45.8%
Coding
- SciCode56.1%
Agentic & Tool Use
- Terminal-Bench Hard60.6%
- Terminal-Bench v2.184.3%
- τ²-bench93.9%
- τ-bench Banking39.0%
Instruction & Long Context
- IFBench75.9%
- Long-Context Reasoning79.0%
Benchmarks measured Aug 2026. Scores are independent evaluations, not vendor-reported.
Model Details
General
- Creator
- OpenAI
- Modalities
- Text
Capabilities
- Tool Calling
- No
- Open Source
- No