ChatGPT
gpt-5.5
openai/gpt-5.5- Context
- 128K tokens
- Token rate
- 20.0×
- Speed
- Complex (Slower)
- Hosting
- Direct API
Maximum prompt length
Relative to baseline
Estimated output rate
Optimised routing
Description
Most capable — $5/$30 per M tokens
Modalities
- Text in / out
- Supported
- Image / vision input
- Supported
- Audio in / out
- Not supported
- Video synthesis
- Not supported
Pricing
- Baseline per token
- ~$0.0000033
- Adjusted rate
- 20.0× baseline
- Included in
- All paid plans