| Coding | Strong coding assistant for explanations, snippets, and debugging. Code interpreter runs Python in-browser. Good for quick tasks and learning. | Best-in-class coding with Claude Code for agentic development. 200K context processes entire repos. Consistently tops coding benchmarks (SWE-bench). |
| Writing | Produces polished, confident prose quickly. Strong at marketing copy, emails, and social content. Sometimes oversimplifies or sounds generic. | Nuanced, thoughtful writing that acknowledges complexity. Better for research, analysis, and long-form content. Less formulaic output. |
| Reasoning | o-series models (o1, o3) offer strong reasoning with chain-of-thought. Excellent at math, logic, and structured problem-solving. | Extended thinking produces detailed reasoning chains. Excels at nuanced analysis where multiple factors interact. Acknowledges uncertainty better. |
| Context Window | 128K tokens for GPT-4o. Sufficient for most tasks but can struggle with very long documents or entire codebases. | 200K tokens β the largest in the industry. Processes entire books, legal contracts, and full codebases in a single conversation. |
| Multimodal | Text, images (DALL-E), voice mode, video understanding, code execution. The most complete multimodal AI platform. | Text and image input. No image generation, voice mode, or code execution. Focused on text-based excellence rather than multimodal breadth. |
| Ecosystem | GPT Store, custom GPTs, plugins, API, Assistants API. The largest third-party ecosystem and integration library. | Claude Code, API, Model Context Protocol (MCP) for tool integration. Growing ecosystem focused on developer tools. |
| Pricing | Free (GPT-4o limited) β Plus $20/mo β Pro $200/mo. API: GPT-4o at ~$2.50-10/M tokens. Teams: $25/user/mo. | Free (Sonnet limited) β Pro $20/mo β Max $100-200/mo. API: Sonnet at ~$3-15/M tokens. Teams: $25-30/user/mo. |
| Safety & Accuracy | Generally accurate but can be confidently wrong. Tends to produce plausible-sounding answers even when uncertain. | Designed to be more honest about uncertainty. Says 'I don't know' more readily. Fewer hallucinations on factual tasks in independent evaluations. |