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GPT 5.3 Codex vs Opus 4.6 Model Comparison Results
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It's Christmas morning: @OpenAI and @AnthropicAI shipped new models on the same day! We tested GPT 5.3 Codex vs. Opus 4.6 head-to-head. Verdict: the models are converging. Here’s what we found 🧵 https://every.to/p/codex-vs-opus
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