OpenAI Codex Pricing
Compare API pricing for 80 OpenAI models suited for coding: GPT-4o, o3, o1, GPT-4.1, and budget-friendly mini variants. See per-token costs, cost per coding request, context windows, and coding capabilities side by side.
OpenAI Coding Model Pricing
Cost/Req = estimated cost per typical coding request (2,000 input + 1,000 output tokens). Prices updated hourly.
Best OpenAI Models for Coding
GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads. It features a 1M+ token context window (922K input, 128K output) with support for...
GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads. It features a 1M+ token context window (922K input, 128K output) with support for...
GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token...
GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token...
GPT-5.4 Pro is OpenAI's most advanced model, building on GPT-5.4's unified architecture with enhanced reasoning capabilities for complex, high-stakes tasks. It features a 1M+ token context window (922K input, 128K...
Coding Tool Compatibility
OpenAI coding models power many of the most popular AI development tools. Here is how they integrate with the leading coding assistants.
Cursor
Uses GPT-4o and o3 as backend models for code completion, chat, and multi-file editing. OpenAI models are available via Cursor's Pro plan alongside Claude and other providers.
Best models for CursorGitHub Copilot
Built on OpenAI models including GPT-4o and o3-mini. Copilot uses these models for inline suggestions, chat, and code review. Enterprise plans offer access to the latest reasoning models.
Claude Code
Anthropic's CLI coding agent uses Claude models natively, but OpenAI models serve as a useful comparison point. Many developers switch between Claude Code and OpenAI-powered tools depending on the task.
Aider
Open-source AI pair programming tool with native support for all OpenAI models. Aider's benchmarks show GPT-4o and o3 performing strongly on code editing tasks. Supports function calling for precise file modifications.
Cost per Coding Request Comparison
Estimated cost per coding request based on 2,000 input tokens (prompt + code context) and 1,000 output tokens (generated code). Sorted from cheapest to most expensive.
Understanding OpenAI Coding Model Pricing
GPT-4o & GPT-4.1 for Coding
GPT-4o and GPT-4.1 are OpenAI's best general-purpose coding models. They support function calling, JSON mode, and multimodal input, making them ideal for code generation, debugging, refactoring, and code review. GPT-4.1 improves on instruction following and has better performance on complex coding tasks.
o3 & o1 for Complex Code
The o-series reasoning models use chain-of-thought to tackle complex algorithms, multi-step debugging, and architectural decisions. o3 is the latest and most capable, while o1 offers strong reasoning at a lower cost. These models are best for tasks requiring deep logical reasoning rather than simple code generation.
Budget Options: Mini Models
GPT-4o Mini offers coding capabilities at a fraction of the cost. While it scores lower on complex benchmarks, it handles straightforward code generation, autocompletion, and simple debugging efficiently. Ideal for high-volume use cases like CI/CD pipelines and automated code review.
Codex Legacy & Migration
The original Codex model (code-davinci-002) was deprecated in March 2023. All Codex capabilities have been absorbed into the GPT-4 family, which significantly outperforms the original Codex on every coding benchmark. Developers should use GPT-4o or GPT-4.1 as direct Codex replacements.
For most coding tasks, GPT-4o and GPT-4.1 offer the best balance of code quality and cost. For complex algorithmic or multi-step reasoning problems, o3 and o1 excel due to their chain-of-thought reasoning capabilities. GPT-4o Mini is ideal for high-volume code generation where cost efficiency is the priority.
The original OpenAI Codex model has been deprecated and replaced by the GPT-4 family. Current coding-capable models range from free (GPT-4o Mini in some tiers) to $60/M output tokens (o3-pro). A typical coding request (2,000 input + 1,000 output tokens) costs between $0.0003 and $0.06 depending on the model.
Yes. GPT-4o is one of the best models for coding. It supports function calling, JSON mode, and has strong performance on coding benchmarks like HumanEval and SWE-bench. It offers multimodal input (you can share screenshots of errors), a large context window, and competitive pricing for production coding workflows.
Both are excellent for coding. OpenAI's o3 and GPT-4.1 lead on certain benchmarks, while Anthropic's Claude 3.5 Sonnet and Claude 4 Opus excel in agentic coding tasks and long-context understanding. Claude tends to follow instructions more precisely, while OpenAI models often have broader tool ecosystem support. The best choice depends on your specific use case, budget, and tooling requirements.