ChatGPT vs Claude: which should you use?

A side-by-side look at ChatGPT and Claude — context window, price per million tokens, and what each one is actually better at. In Blend you can use both and switch mid-conversation.

Model data updated: 2026-08-16

Short answer

Neither wins every task. ChatGPT and Claude each have questions they answer better, which is why picking one for everything costs you quality. Blend routes each question to whichever fits, so you do not have to decide up front.

  • GPT-5.6 Terra is the cheaper of the two on input tokens ($0.50 per 1M).
Representative modelProviderContextInputOutputImages
ChatGPT — GPT-5.6 TerraOpenAI128K$0.50$1.50Yes
Claude — Claude Opus 5Anthropic128K$15$75Yes

Input / Output: per 1M tokens. Prices are the providers’ list prices in USD per million tokens and can change at any time. Use them for comparison, not billing.

What ChatGPT is good at

The most widely used general-purpose assistant, with the broadest ecosystem of tools and integrations.

  • Balanced quality across almost every task
  • Strongest tool and plugin ecosystem
  • Reliable multimodal (image) understanding

What Claude is good at

Favoured for long documents, careful reasoning and natural writing, with very large context windows.

  • Handles very long documents in one pass
  • Natural, low-cliché writing style
  • Careful step-by-step reasoning and coding

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Related comparisons

Model capabilities and prices change often. Figures come from Blend’s automatically synced registry and are shown for comparison. All model prices