OpenAI: GPT-5.5
7.2 / 10
1.1M context
Proprietary
About this model
GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token...
Benchmark Scores
HLE
52.2
GPQA-Diamond
94.0
SWE-Bench-Pro
58.6
Terminal-Bench-2.1
83.4
Technical Specs
- Architecture: text+image+file->text
- Context Window: 1,050,000 tokens
- Input Modalities: text
Hardware Requirements
- API-only (no local hardware needed)
Pricing
| Input | Output | Currency |
|---|---|---|
| 5.0 / 1M tokens | 30.0 / 1M tokens | USD |