Compare AI Coding Tools

Comparing 2 tools side by side

Comparison	Google Gemini API✓ Access Gemini 3 Flash (~78% SWE-bench at $0.50/$3), 3.1 Pro, and the full Gemini model family 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	Free (Google AI Studio): $0 Gemini 3.1 Pro Preview: $2 / 1M input, $12 / 1M output Gemini 3 Flash: $0.50 / 1M input, $3 / 1M output Gemini 2.5 Pro: $1.25 / 1M input, $10 / 1M output Gemini 2.5 Flash / Flash-Lite: Flash: $0.30/$2.50 \| Flash-Lite: $0.10/$0.40 per MTok	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	Gemini 3.1 Pro (preview)Gemini 3 FlashGemini 3 Pro (preview)Gemini 2.5 ProGemini 2.5 Flash+1 more	gpt-5.2gpt-5gpt-5.3-codexgpt-5-codexgpt-4.1+7 more
Context Window	1,000,000 tokens across all models (up to 2M on Gemini 2.5 Pro)	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 Voice Input	Code Completion Code Generation Code Review Debugging Refactoring Testing Documentation Chat Agentic Mode Multi File Voice Input
Platforms	WebAll platforms via API	APIWebDesktop
Languages	PythonJavaScript/TypeScriptGoJavaREST	Any language via REST/HTTP
Open Source	No	No
GitHub Stars	N/A	N/A
Users	Millions of developers	200M+ ChatGPT weekly active users
Rating	N/A	N/A
Visit	Visit Website →View Details	Visit Website →View Details