GPT-5.5 (medium)
- Released
- Apr 23, 2026
- Tracked since
- 2026-07-23
Intelligence index33.8Ranks 76 of 664 models with this metric
Coding index71.5Ranks 43 of 259 models with this metric
Agentic index29.5Ranks 64 of 156 models with this metric
Capability profile
5 axes vs. site averageGPT-5.5 (medium)
Site average
Pricing
per 1M tokens- Input
- $5.00
- Output
- $30.00
- Cache read
- $0.500
Performance
- Output throughput
- 91 tokens/sec
- Time to first token
- 5.71s
- First answer token
- 5.71s
- End-to-end response
- 11.20s
History
6Intelligence index
50.4→33.8
Output
Unchanged across 62 days of records
Output throughput
69→91
Cheaper at this level
Models with a comparable intelligence index and a lower output price- Qwen3.8-Flash-Next
AlibabaIntelligence 39.8$0.470−98%
- GLM 5.3 Flash
Z AIIntelligence 41.8$0.500−98%
- GPT-6 Luna (max)
OpenAIIntelligence 37.3$0.500−98%
- GPT-6 Luna (xhigh)
OpenAIIntelligence 33.9$0.500−98%
- MiMo-V2.6-Pro
XiaomiIntelligence 46.3$0.870−97%