Loading models
Model details
OpenAI: GPT-5.3-Codex
Find out what this model does, when it was released, and which provider serves it.
Kilo Gatewayopenai/gpt-5.3-codex
Quick Info
- Provider
- Kilo Gateway
- Model key
- openai/gpt-5.3-codex
- Release date
- Feb 25, 2026
- Last updated
- Mar 15, 2026
- Knowledge
- Unknown
- Input modalities
- image, text
- Output modalities
- text
- Capabilities
- Reasoning, Tool calling, Attachments
- Cost summary
- In $1.75 · Out $14.00
- Limit summary
- 400,000 token context window
Cost
- Input token cost
- $1.75
- Output token cost
- $14.00
Limits
- Output tokens
- 128,000 tokens
- Context window
- 400,000 tokens