Model comparison
GPT-5.1 Codex Mini vs GPT-5
Capability radar, value bars, and side-by-side posture.
GPT-5.1 Codex Mini
Not scored
value score
GPT-5
94
value score
GPT-5.1 Codex Mini ctx
—
GPT-5 ctx
400K
Capability radar
Value · context · multimodal · openness · speed posture
Value head-to-head
- GPT-594
Attribute tape
| Field | GPT-5.1 Codex Mini | GPT-5 |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Context | — | 400K |
| Modalities | Text, Code, Image, Audio | |
| Openness | — | Proprietary Model |
| Speed | — | Fast |
| Price | — | Mid-High |
| Value score | — | 94 |
| Summary | GPT-5.1 Codex mini is OpenAI's smaller, faster, and more cost-effective coding model in the Codex family, optimized for routine software-engineering tasks such as bug fixes, test generation, code review, and repo-aware agentic workflows. It accepts text and image inputs and is designed for high-frequency, CI-style developer automation at lower cost than the full GPT-5.1 Codex. | OpenAI frontier multimodal model. |