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GPT-5-Codex

gpt-5-codex

GPT-5-Codex is a version of GPT-5 optimized for agentic coding tasks in Codex or similar environments.

Available at 11 Providers

Provider Source Input Price ($/1M) Output Price ($/1M) Description Free
vercel vercel Input: $1.25 Output: $10.00 GPT-5-Codex is a version of GPT-5 optimized for agentic coding tasks in Codex or similar environments.
poe poe Input: $1.10 Output: $9.00 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. The model supports building projects from scratch, feature development, debugging, large-scale refactoring, and code review. Compared to GPT-5, Codex is more steerable, adheres closely to developer instructions, and produces cleaner, higher-quality code outputs. It supports multimodal inputs such as images or screenshots for UI development and a 400k token context window. We recommend using GPT-5-Codex only for agentic and interactive coding use cases. To instruct the bot to use more reasoning effort, add `--reasoning_effort` to the end of your message with one of "low", "medium", or "high"
githubcopilot models-dev Input: $0.00 Output: $0.00 Provider: GitHub Copilot, Context: 128000, Output Limit: 128000
azure models-dev Input: $1.25 Output: $10.00 Provider: Azure, Context: 400000, Output Limit: 128000
helicone models-dev Input: $1.25 Output: $10.00 Provider: Helicone, Context: 400000, Output Limit: 128000
opencode models-dev Input: $1.07 Output: $8.50 Provider: OpenCode Zen, Context: 400000, Output Limit: 128000
openai models-dev Input: $1.25 Output: $10.00 Provider: OpenAI, Context: 400000, Output Limit: 128000
zenmux models-dev Input: $1.25 Output: $10.00 Provider: ZenMux, Context: 400000, Output Limit: 64000
aihubmix models-dev Input: $1.25 Output: $10.00 Provider: AIHubMix, Context: 400000, Output Limit: 128000
azurecognitiveservices models-dev Input: $1.25 Output: $10.00 Provider: Azure Cognitive Services, Context: 400000, Output Limit: 128000
openrouter openrouter Input: $1.25 Output: $10.00 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. The model supports building projects from scratch, feature development, debugging, large-scale refactoring, and code review. Compared to GPT-5, Codex is more steerable, adheres closely to developer instructions, and produces cleaner, higher-quality code outputs. Reasoning effort can be adjusted with the `reasoning.effort` parameter. Read the [docs here](https://openrouter.ai/docs/use-cases/reasoning-tokens#reasoning-effort-level) Codex integrates into developer environments including the CLI, IDE extensions, GitHub, and cloud tasks. It adapts reasoning effort dynamically—providing fast responses for small tasks while sustaining extended multi-hour runs for large projects. The model is trained to perform structured code reviews, catching critical flaws by reasoning over dependencies and validating behavior against tests. It also supports multimodal inputs such as images or screenshots for UI development and integrates tool use for search, dependency installation, and environment setup. Codex is intended specifically for agentic coding applications. Context: 400000