OpenRouter Fusion · Budget (Jun 2026)vsGPT-5.1 Codex Max
OpenRouter Fusion · Budget (Jun 2026) is the newer model, released after GPT-5.1 Codex Max.
| Spec | OpenRouter Fusion · Budget (Jun 2026) | GPT-5.1 Codex Max |
|---|---|---|
| Context window | 256K tokens | — |
| Weights | — | Closed |
| Free API (OpenRouter) | No | No |
| Released | Jun 2026 | Dec 2025 |
Our Verdict
OpenRouter Fusion · Budget (Jun 2026)
GPT-5.1 Codex Max
Not enough votes to call it. On the specs, nothing separates them.
Too close to call
Reviewing agent-written code?See a Brief PR report
Where to run it
1 host
OpenRouter Fusion · Budget (Jun 2026)
No hosts listed on OpenRouter.
GPT-5.1 Codex Max1 host
Per million tokens. Prices and uptime via OpenRouter, checked 13 Sep 2026.
Writing DNA
Style Comparison
Similarity
38%
OpenRouter Fusion · Budget (Jun 2026)
GPT-5.1 Codex Max
58%Vocabulary60%
22wSentence Length16w
0.13Hedging0.36
3.8Bold2.3
1.7Lists4.2
0.01Emoji0.00
0.93Headings0.12
0.17Transitions0.03
Based on 27 + 13 text responses
Research
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