GPT-5 Codex (batch)
OpenAI
openai/gpt-5-codex:batchGPT-5-Codex is a coding-specialized variant of GPT-5 tuned for agentic software engineering in Codex and Codex-like harnesses, handling long-running tasks such as refactors and debugging. This is the batch variant for cheaper asynchronous processing.
Cost rate
0.9x
Context
400K
Released
Sep 23, 2025
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Output
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ReasoningTool callingStructured outputs
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