OpenAI: GPT-5.1 Codex
by Helicone · family gpt-codex · listed Jan 2025TV
Image model for prompt-driven generation, editing, and visual design workflows
Current rates USD per 1M tokens
Input$1.25
Output$10.00
Cache read$0.125
Cache write—
Against the market
On the record
- Model id
gpt-5.1-codex- Context window
- 400K tokens
- Max output
- 128K tokens
- Input modalities
- text, image
- Output modalities
- text, image
- Reasoning
- no
- Tool calls
- yes
- Open weights
- no
- Knowledge cutoff
- Jan 2025
- Released
- 2025-01-01
- Last updated
- 2025-01-01
- Provider docs
- helicone.ai/models
Back of the envelope
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