Claude vs OpenAI: choosing between the two labs
Searching this pair usually means choosing between the two strongest labs' consumer apps: Claude for careful reasoning, writing quality, and the most user-controllable memory; ChatGPT for the most complete product around the GPT-5.6 family. The honest answer working people keep arriving at is "different messages, different labs": the same project can want Claude's judgment on one question and GPT's breadth on the next. We build NodePad exactly for that answer: both labs' models (and Gemini) in one workspace, chosen per message, each receiving the bare context you assembled on the canvas. If you are picking one subscription, the columns below are the honest comparison. If picking is the problem, the third column is the product.
| dimension | Claude | ChatGPT (OpenAI) | NodePad |
|---|---|---|---|
| Price of entry | Free; Pro $20/mo ($17 annual); Max $100 to $200/mo. | Free; Go $8/mo; Plus $20/mo; Pro $200/mo. Ads are being tested on Free and Go. | Free on community models; paid plans from $5/mo. No ads on any tier. |
| Models | Haiku, Sonnet 5, Opus 4.8, Fable 5. Anthropic only. | GPT-5.5 free; GPT-5.6 Sol, Terra, and Luna on paid plans. OpenAI only. | Both labs plus Gemini, picked per message with exact model names. |
| Context window | 200K tokens on all consumer plans; long chats auto-summarize. | In-app windows are unpublished and far below the API's (roughly 32K on Plus). | The model's full window, spent on context you chose. |
| Memory | The best controls anywhere: view, edit, pause, reset, incognito, on every plan. | The deepest recall anywhere, rewritten in the background; the least inspectable. | None by design; continuity is the canvas you can see. |
| Who assembles the context | Memory synthesis plus chat-search retrieval decide what enters; you edit the summary, not the per-message context. | Hidden system prompt plus injected memory synthesis plus truncated history. | You. The path you built plus what you referenced or merged. Nothing hidden, nothing injected. |
| Branching | Edit and regenerate keep hidden versions behind per-message arrows; no view of the tree. | "Branch in new chat" copies context to a separate flat chat; no tree, no merge back. | Fork any point onto a visible parallel path; merge the paths that earn it. |
| Beyond chat | Artifacts with publishing, Claude Code bundled at $20, voice, MCP connectors, Research. | Best-in-class apps, full-duplex voice, image generation, agents, custom GPTs, Codex. | The canvas is the product; plugins add tools. Both labs beat us on breadth. |
| Usage limits | A conversation budget with no published numbers; chat and Claude Code share one pool. | Dynamic and unpublished; they flex with load and region. | A visible usage meter; add usage or wait for the monthly reset. |
No credit card to start. Every paid plan reaches every model.