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@sama
Performance High importance

@sama

Importance score: 3 • Posted: February 26, 2026 at 18:25

Score

3

Thank you and will work hard to continue to earn your tokens!

Mitchell Hashimoto

Mitchell Hashimoto

@mitchellh

2026-02-25T14:45:34.000000Z

Open

I know this is pretty well established at this point, but Codex 5.3 is a much more effective model than Opus 4.6. I went back and forth on both for a bit, but haven’t touched Opus at all now for a full week. First model to get me off of Opus… ever. Good job Codex team.

Grok reasoning
Sam Altman responding to praise of OpenAI's Codex model outperforming competitors, highlighting model performance advancements.

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Tweet ID: 2027087689359753483
Prompt source: ai-influencers-news
Fetched at: February 27, 2026 at 06:03