OpenAI: GPT-5.1-Codex-Mini vs OpenAI: o4 Mini
Side-by-side comparison of OpenAI: GPT-5.1-Codex-Mini and OpenAI: o4 Mini. Compare pricing, context window, capabilities, and find out which is better for your workflow.
Verdict
moderate confidenceOpenAI: GPT-5.1-Codex-Mini leads overall
OpenAI: GPT-5.1-Codex-Mini leads in price and context window, making it the stronger choice for most workflows. OpenAI: o4 Mini remains a solid alternative depending on your specific needs.
Best for with OpenAI: GPT-5.1-Codex-Mini
Best for with OpenAI: o4 Mini
Side-by-side
Technical specifications
| OpenAI: GPT-5.1-Codex-Mini | OpenAI: o4 Mini | |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input price | $0.25/M | $1/M |
| Output price | $2/M | $4/M |
| Context window | 400K | 200K |
| Max output | 100K | 100K |
| Capabilities | Tool useVisionReasoning | Tool useVisionReasoning |
| Released | Nov 13, 2025 | Apr 16, 2025 |
Scoring breakdown
How each dimension compares
Price
OpenAI: GPT-5.1-Codex-Mini leadsOpenAI: GPT-5.1-Codex-Mini
$2/M tokens
OpenAI: o4 Mini
$4/M tokens
Context Window
OpenAI: GPT-5.1-Codex-Mini leadsOpenAI: GPT-5.1-Codex-Mini
400K tokens
OpenAI: o4 Mini
200K tokens
Capabilities
OpenAI: GPT-5.1-Codex-Mini
3/4
OpenAI: o4 Mini
3/4
Max Output
OpenAI: GPT-5.1-Codex-Mini
100K tokens
OpenAI: o4 Mini
100K tokens
Recency
OpenAI: GPT-5.1-Codex-Mini
Nov 2025
OpenAI: o4 Mini
Apr 2025
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