Compare AI Coding Tools

Comparing 2 tools side by side

Comparison	Anthropic Claude API✓ Build with Claude Opus 4.6, Sonnet 4.6, and Haiku via the Anthropic API with MCP and adaptive thinking Pay-per-use	OpenAI API✓ API access to GPT-5.2, Codex models, Responses API, Agents SDK, and the full OpenAI platform Pay-per-use
Category	API/SDK Tool	API/SDK Tool
Pricing	Opus 4.6: $5 / 1M input, $25 / 1M output Sonnet 4.6: $3 / 1M input, $15 / 1M output Haiku 4.5: $1 / 1M input, $5 / 1M output	GPT-5.2 (Flagship): $1.75 / 1M input, $14 / 1M output GPT-5: $1.25 / 1M input, $10 / 1M output GPT-4.1: $2 / 1M input, $8 / 1M output GPT-5 Mini / Nano: Mini: $0.25/$2 \| Nano: $0.05/$0.40 per MTok Batch: 50% discount vs standard pricing
AI Models	claude-opus-4-6claude-sonnet-4-6claude-haiku-4-5	gpt-5.2gpt-5gpt-5.3-codexgpt-5-codexgpt-4.1+7 more
Context Window	200K standard; 1M beta on Opus 4.6	Up to 1M tokens (GPT-4.1); 400K tokens (GPT-5 family)
Capabilities	Code Completion Code Generation Code Review Debugging Refactoring Testing Documentation Chat Agentic Mode Multi File	Code Completion Code Generation Code Review Debugging Refactoring Testing Documentation Chat Agentic Mode Multi File Voice Input
Platforms	APIWeb	APIWebDesktop
Languages	Any (via REST API)	Any language via REST/HTTP
Open Source	No	No
GitHub Stars	N/A	N/A
Users	N/A	200M+ ChatGPT weekly active users
Rating	N/A	N/A
Visit	Visit Website →View Details	Visit Website →View Details