Claude vs GPT
Claude and GPT side by side: model sizes, the VRAM you need, context window, abilities, licence and which one to pick.
Side by side
| Claude | GPT | |
|---|---|---|
| Type | API-only models | API-only models |
| Developer | Anthropic | OpenAI |
| Newest model | Claude Fable 5.2 · Nov 2026 | GPT-6.1 Terra · Oct 2026 |
| Sizes | Not disclosed | Not disclosed |
| Smallest VRAM (4-bit) | Runs in the cloud | Runs in the cloud |
| Context window | 1M tokens | 1.05M tokens |
| Abilities | Tool callingReasoning modeImage input | Tool callingReasoning modeImage input |
| Licence | Proprietary (API only) | Proprietary (API only) |
| Run it | API: claude-fable-5-2 | API: gpt-6.1-terra |
| Next retirement | Claude Sonnet 4.5 · 30 Nov 2026 | GPT-5, GPT-5 mini, GPT-5 nano · 11 Dec 2026 |
Which one should you pick?
- GPT reads longer inputs: a 1.05M-token context window.
Pick Claude if…
- you want the strongest model for agentic coding (Claude Code)
- you need 1M-token context on every tier, including the cheapest
- you prefer predictable, published retirement dates
Pick GPT if…
- you are already on the OpenAI platform or ChatGPT
- you need computer use or visual reasoning (GPT-6.1 Terra)
- you want a very cheap tier with 1M context (GPT-6 Luna)
Frequently asked questions
Is Claude better than GPT?
It depends on the job and your hardware. GPT reads longer inputs: a 1.05M-token context window. For quality, test both on your own prompts: benchmark rankings change with every release.
Can I use Claude and GPT commercially?
Claude: Proprietary (API only). GPT: Proprietary (API only). Check the exact licence of the model you deploy; custom licences can limit very large companies or certain uses.
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