OpenAI: GPT-5 Codex (batch)
Analysis Summary
OpenAI GPT-5 Codex is designed around software-oriented workflows and supports tool use, function calling, vision, and a 400K context window. That makes it a natural candidate for repository analysis, code generation, debugging, and development tasks involving substantial project context.
The pricing is more accessible than the premium Pro variants, although output costs remain relevant for lengthy coding sessions. Despite its product positioning, this record contains no coding or agentic benchmark results, so production reliability should be established with repository-level tests and tool-use evaluations. Use it for engineering pilots and controlled coding agents, then expand deployment only after measuring patch quality and failure recovery.
Assessed September 7, 2026
Editorial notes
GPT-5 Codex is positioned for software work with tool use, function calling, vision, and a 400K context window. Its moderate input pricing supports coding workflows, but benchmark evidence is not supplied for this record.
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DFO Verdict
GPT-5 Codex is positioned for software work with tool use, function calling, vision, and a 400K context window. Its moderate input pricing supports coding workflows, but benchmark evidence is not supplied for this record.
How OpenAI: GPT-5 Codex (batch) compares
Its 400K-token context window is larger than 73% of the models we list. At $0.63 per million input tokens it is cheaper than 34% of comparable models.
Dark bar = input · light bar = output, scaled to the priciest peer.
1M tokens ≈ 8 full-length novels or ~2,500 pages of business documents in a single request.
Strongest on business fit. The pulled-in technical corner is the trade-off, and if the shape matters more than the price, this is your model.
Compare shapes side-by-side →Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $0.63 | $0.000625 |
| Output | $5.00 | $0.005000 |
What would OpenAI: GPT-5 Codex (batch) cost your business?
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A website chatbot handling around 100 customer conversations a day, a few short messages each.
Full calculator with 798 models → Price Calculator
These numbers get smaller with the right architecture.
We route routine calls to cheap models and save OpenAI: GPT-5 Codex (batch) for the hard ones. Most clients cut their estimate by 60-80%.
Talk to our teamAbout OpenAI: GPT-5 Codex (batch)
GPT-5-Codex is a specialized version of GPT-5 optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks..
Frequently asked questions about OpenAI: GPT-5 Codex (batch)
How much does OpenAI: GPT-5 Codex (batch) cost?
OpenAI: GPT-5 Codex (batch) costs $0.63 per million input tokens and $5.00 per million output tokens.
What is the context window of OpenAI: GPT-5 Codex (batch)?
OpenAI: GPT-5 Codex (batch) has a context window of 400,000 tokens (400K).
What can OpenAI: GPT-5 Codex (batch) do?
OpenAI: GPT-5 Codex (batch) supports image/vision input, tool use, and function calling.
Who created OpenAI: GPT-5 Codex (batch)?
OpenAI: GPT-5 Codex (batch) is developed by OpenAI and was released on September 23, 2025.