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Discussion on "Claude Opus 4.6 vs Codex 5.3: Real Developer Test" | Hashnode

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Dishant Sharma

Feb 7

Claude Opus 4.6 vs Codex 5.3: Real Developer Test

Anthropic dropped Claude Opus 4.6 on February 4, 2026. OpenAI released GPT-5.3-Codex the same day. Same launch day. Both claiming to be the best coding agent ever built. The timing wasn't an accident. This was a coordinated flex. Two companies saying...

dishantsharma.hashnode.dev6 min read

#ai #llm #claudeai #openai #codex

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