400KContext
$0.75In, per 1M
$4.5Out, per 1M
- Lab
- OpenAI
- Released
- 17 Mar 2026
- Context window
- 400K tokens
- Longest answer
- 128K tokens
- Input, per 1M tokens
- $0.75
- Output, per 1M tokens
- $4.5
- Reads images
- Yes
- Reasoning
- Yes
- Tool calling
- Yes
- Open weights
- No
- Answers in
- text
- Model id
- openai/gpt-5.4-mini