A serious coding model with repository-scale context that earns its place in any developer's toolkit.
Professional developers who need to reason across large codebases, generate production-ready code, and debug complex multi-file projects.
400K context window enables ingesting entire repositories or large monorepos in a single prompt
Coding-optimized architecture outperforms standard GPT-5 on code generation and refactoring benchmarks
Competitive $1.25/1M input pricing makes large-context coding tasks cost-effective compared to Claude Sonnet 4.6
Strong multi-language support across Python, TypeScript, Rust, Go, and systems-level languages
Output cost of $10/1M tokens adds up quickly for verbose code generation or documentation tasks
See what OpenAI: GPT-5 Codex actually costs at your usage level
Based on OpenAI: GPT-5 Codex API pricing: $1.25/1M input · $10/1M output. Real costs vary by provider discounts and caching. Check the provider for exact current rates.
Price History
→0% since May 9
4 data points · tracked daily since May 9, 2026
Professional developers who need to reason across large codebases, generate production-ready code, and debug complex multi-file projects.. Start free — no card required.
Recommendations are made independently based on real-world use and public benchmarks. See our disclosures for details.
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OpenAI: GPT-5 Codex (OpenAI) is now indexed. It supersedes GPT-4o. A serious coding model with repository-scale context that earns its place in any developer's toolkit.
View modelOpenAI: GPT-5 Codex is best for professional developers who need to reason across large codebases, generate production-ready code, and debug complex multi-file projects.. It is a strong fit when that workflow matters more than the tradeoffs around balanced pricing and balanced speed.
You need image generation, creative writing, or general-purpose chat — there are better-value models for non-coding tasks.
Meta: Llama 3.1 8B Instruct is the lower-cost option to compare first when you want a similar workflow fit with less token spend.
GPT-5.5 is the better pick when response time matters more than maximum depth or premium quality.
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You need image generation, creative writing, or general-purpose chat — there are better-value models for non-coding tasks.
Not a general-purpose reasoning model — creative writing, nuanced analysis, and image tasks are outside its sweet spot
No native image generation or multimodal output capabilities
GPT-4 Turbo is OpenAI's high-capability flagship model featuring a 128K context window, trained on data up to April 2024. It delivers strong reasoning, coding, and instruction-following across complex tasks.
GPT-4 Turbo (v1106) is an older snapshot of OpenAI's flagship GPT-4 Turbo model released in November 2023, offering a 128K context window with strong general-purpose reasoning and instruction-following capabilities. It predates later GPT-4 Turbo updates and GPT-4o, making it a legacy choice for workflows locked to this specific version.
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