Which is better, Codex or Claude Code?
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For interactions that are easy to understand, Yichen hands all important work to Claude Code with Opus 5.5 and reserves Codex only for scheduled tasks, reasoning that Claude speaks plainly and will even explain complex concepts with charts.

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On quotas, Kazike compared two $200 accounts: Claude's weekly quota is worth about $3,400 in API value, while Codex's is worth about $1,700. He personally feels Claude lasts much longer.

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On benchmarks and cost, on Terminal-Bench 4.0 GPT-6 Astra with Codex scores 58.2%, slightly above Fable 5.1's 57.9%, at about half the cost of the other.

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The same model gets different results with different tools: DeepSeek V4.1 Flash at the highest reasoning tier scores 69.8 on DeepSWE with Claude Code and 65.6 with Codex.

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You can divide the work: Baoyu feels more confident using Claude for interface polishing and implementing from design mockups, GPT 5.6 Sol does well on non-interface parts, and releasing new versions is also handed to Codex.

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When mixing tools on a team, watch the rule files: Shopify's CEO pointed out that Claude Code mainly reads CLAUDE.md, not AGENTS.md, so different tools may read inconsistent rules.

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Everything here comes from real-world tests by users on X. Rules and products change often, so always check the latest. If you know a better way, we'd love to hear it.