AI assistant comparison
ChatGPT vs Claude
Two of the most powerful AI assistants, compared head-to-head. See how GPT-4o and Claude 3.5 Sonnet stack up across reasoning, coding, writing, and more — then find which one fits your tasks best.
GPT-4o (ChatGPT)
Claude 3.5 Sonnet
Reasoning
GPT-4o (ChatGPT)
Strong multi-step reasoning with GPT-4o. Excels at math and logic puzzles. Chain-of-thought prompting works well.
Claude 3.5 Sonnet
Best-in-class reasoning with Claude 3.5 Sonnet. Particularly strong at nuanced analysis, careful thinking, and avoiding hallucinations.
Strong multi-step reasoning with GPT-4o. Excels at math and logic puzzles. Chain-of-thought prompting works well.
Best-in-class reasoning with Claude 3.5 Sonnet. Particularly strong at nuanced analysis, careful thinking, and avoiding hallucinations.
Coding
GPT-4o (ChatGPT)
Solid code generation across languages. Good at debugging and explaining code. Integrated with GitHub Copilot ecosystem.
Claude 3.5 Sonnet
Excellent code generation and refactoring. Handles large codebases with 200K context. Powers Claude Code CLI for agentic development.
Solid code generation across languages. Good at debugging and explaining code. Integrated with GitHub Copilot ecosystem.
Excellent code generation and refactoring. Handles large codebases with 200K context. Powers Claude Code CLI for agentic development.
Writing
GPT-4o (ChatGPT)
Versatile writing style. Can match many tones and formats. Strong at creative and marketing copy.
Claude 3.5 Sonnet
More natural, less formulaic writing. Better at maintaining consistent voice and following nuanced style guidelines.
Versatile writing style. Can match many tones and formats. Strong at creative and marketing copy.
More natural, less formulaic writing. Better at maintaining consistent voice and following nuanced style guidelines.
Analysis
GPT-4o (ChatGPT)
Strong data analysis with Code Interpreter. Can run Python, create charts, and process files directly.
Claude 3.5 Sonnet
Deep analytical reasoning with fewer errors. Excels at document analysis and extracting insights from long texts.
Strong data analysis with Code Interpreter. Can run Python, create charts, and process files directly.
Deep analytical reasoning with fewer errors. Excels at document analysis and extracting insights from long texts.
Context Window
GPT-4o (ChatGPT)
128K tokens for GPT-4o. Sufficient for most tasks but can lose track of details in very long conversations.
Claude 3.5 Sonnet
200K tokens for Claude 3.5 Sonnet. Industry-leading context length with strong recall throughout the entire window.
128K tokens for GPT-4o. Sufficient for most tasks but can lose track of details in very long conversations.
200K tokens for Claude 3.5 Sonnet. Industry-leading context length with strong recall throughout the entire window.
Safety
GPT-4o (ChatGPT)
Extensive content filters and RLHF alignment. Sometimes overly cautious, refusing benign requests.
Claude 3.5 Sonnet
Constitutional AI approach. Transparent about limitations. Tends to be more helpful while still being safe and honest.
Extensive content filters and RLHF alignment. Sometimes overly cautious, refusing benign requests.
Constitutional AI approach. Transparent about limitations. Tends to be more helpful while still being safe and honest.
Pricing
GPT-4o (ChatGPT)
GPT-4o: $5 input / $15 output per 1M tokens. ChatGPT Plus at $20/mo. Free tier available with limits.
Claude 3.5 Sonnet
Claude 3.5 Sonnet: $3 input / $15 output per 1M tokens. Claude Pro at $20/mo. Free tier available with limits.
GPT-4o: $5 input / $15 output per 1M tokens. ChatGPT Plus at $20/mo. Free tier available with limits.
Claude 3.5 Sonnet: $3 input / $15 output per 1M tokens. Claude Pro at $20/mo. Free tier available with limits.
API
GPT-4o (ChatGPT)
Mature API with function calling, streaming, assistants, and fine-tuning. Large ecosystem of integrations.
Claude 3.5 Sonnet
Clean API with tool use, streaming, and batching. Available on AWS Bedrock and Google Vertex for enterprise deployment.
Mature API with function calling, streaming, assistants, and fine-tuning. Large ecosystem of integrations.
Clean API with tool use, streaming, and batching. Available on AWS Bedrock and Google Vertex for enterprise deployment.
Multimodal
GPT-4o (ChatGPT)
Vision, audio input/output, DALL-E image generation, and file uploads. Broadest multimodal capabilities.
Claude 3.5 Sonnet
Vision support for images and PDFs. No audio or image generation. Focused on text and vision excellence.
Vision, audio input/output, DALL-E image generation, and file uploads. Broadest multimodal capabilities.
Vision support for images and PDFs. No audio or image generation. Focused on text and vision excellence.
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