GPT-5 CodexvsNVIDIA Nemotron 3 Super (free)
NVIDIA Nemotron 3 Super (free) is the newer model, released after GPT-5 Codex.
| Spec | GPT-5 Codex | NVIDIA Nemotron 3 Super (free) |
|---|---|---|
| Context window | — | 262K tokens |
| Weights | — | Open |
| Free API (OpenRouter) | No | Yes (1 provider) |
| Released | Sep 2025 | Mar 2026 |
Our Verdict
GPT-5 Codex
NVIDIA Nemotron 3 Super (free)Runner-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
Where to run it
1 host
GPT-5 Codex
No hosts listed on OpenRouter.
NVIDIA Nemotron 3 Super (free)1 host
Per million tokens. Prices and uptime via OpenRouter, checked 13 Sep 2026.
Writing DNA
Style Comparison
Similarity
34%
NVIDIA Nemotron 3 Super (free) uses 3.1x more transitions
GPT-5 Codex
NVIDIA Nemotron 3 Super (free)
64%Vocabulary55%
17wSentence Length22w
0.38Hedging0.36
2.3Bold5.1
3.5Lists2.9
0.15Emoji0.20
0.49Headings0.64
0.05Transitions0.17
Based on 13 + 23 text responses
Research
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