GPT-5 CodexvsMiMo-V2.5
MiMo-V2.5 is the newer model, released after GPT-5 Codex.
| Spec | GPT-5 Codex | MiMo-V2.5 |
|---|---|---|
| Input price | — | $0.4/M tokens |
| Output price | — | $2/M tokens |
| Context window | — | 1.0M tokens |
| Weights | — | Open |
| Free API (OpenRouter) | No | No |
| Released | Sep 2025 | Apr 2026 |
Our Verdict
GPT-5 Codex
MiMo-V2.5Runner-up
Not enough votes to call it. On the specs, GPT-5 Codex has the edge: bigger model tier, major provider backing.
Too close to call
Reviewing agent-written code?See a Brief PR report
API pricing
Cost per 1M tokens
GPT-5 Codex
Input
—
Output
—
MiMo-V2.5
Input
$0.40
Output
$2.00
Where to run it
5 hosts, cheapest first
GPT-5 Codex
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 11 Sep 2026.
Writing DNA
Style Comparison
Similarity
47%
MiMo-V2.5 uses 6.9x more emoji
GPT-5 Codex
MiMo-V2.5
64%Vocabulary57%
17wSentence Length17w
0.38Hedging0.64
2.3Bold5.9
3.5Lists2.8
0.15Emoji1.01
0.49Headings1.07
0.05Transitions0.07
Based on 13 + 27 text responses
Research
What we learned reading every model
FAQ
Common questions
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