Vibe Check Live: GPT-5.3 Codex vs. Opus 4.6—INSANE new models from @OpenAI and @AnthropicAI. We’ve been testing both hands-on for over a week. Let's go through our head-to-head take! x.com/i/broadcasts/1vAxRQOyr…

Dan Shipper

Vibe Check live: GPT-5.3 Codex vs. Opus 4.6—INSANE new models from OpenAI and Anthropic We’ve been testing both hands-on for over a week. We’ll go through our head-to-head take!

Last edited Feb 5, 2026 · 6:19 PM UTC

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Replying to @danshipper @OpenAI @AnthropicAI
How do you keep this a secret
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Replying to @danshipper @OpenAI @AnthropicAI
@naveennaidu_m saying that it feels now like codex means a lot! gonna give this a shot.
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Replying to @danshipper @OpenAI @AnthropicAI
Here's a report on first reactions of both: x.com/Scobleizer/status/2019…
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Replying to @danshipper @OpenAI @AnthropicAI
got this from GPT-5.3-codex
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Replying to @danshipper @OpenAI @AnthropicAI
The head-to-head framing is fun but misleading. They're converging on the same capabilities from different angles. The real question: which one fits YOUR workflow better? That's not a benchmark you can run.
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Replying to @danshipper @OpenAI @AnthropicAI
i would neverrrrrrrrrrr give a penny to @sama
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