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: 2026-10-04
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 model | Provider | Context | Input | Output | Images |
|---|---|---|---|---|---|
| ChatGPT — GPT-5.6 Terra | OpenAI | 128K | $0.50 | $1.50 | Yes |
| Claude — Claude Opus 5 | Anthropic | 128K | $15 | $75 | Yes |
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.
- On input tokens, Claude costs about 30× what ChatGPT costs.
- On output tokens, the gap is about 50× in favour of ChatGPT.
ChatGPT models you can use in Blend
| Model | Context | Input | Output | Images |
|---|---|---|---|---|
| GPT-5.6 Terra | 128K | $0.50 | $1.50 | Yes |
| GPT-5.2 | 128K | $0.50 | $1.50 | Yes |
| GPT-5.4 mini | 128K | $0.50 | $1.50 | Yes |
| GPT-5.4 nano | 128K | $0.50 | $1.50 | Yes |
Blend currently exposes 4 ChatGPT models with published pricing or context figures.
Claude models you can use in Blend
| Model | Context | Input | Output | Images |
|---|---|---|---|---|
| Claude Opus 5 | 128K | $15 | $75 | Yes |
| Claude Sonnet 5 | 128K | $3 | $15 | Yes |
| Claude Fable 5 | 128K | $3 | $15 | Yes |
| Claude Haiku 4.5 | 200K | $0.80 | $4 | Yes |
Blend currently exposes 4 Claude models with published pricing or context figures.
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
Tasks where ChatGPT is the first pick
Tasks where Claude is the first pick
Frequently asked
Is ChatGPT or Claude cheaper?
GPT-5.6 Terra has the lower input price at $0.50 per million tokens, based on the registry figures in the table above.
How many ChatGPT and Claude models does Blend include?
4 from ChatGPT and 4 from Claude, and the list updates automatically when a provider adds or retires a model.
Can I ask ChatGPT and Claude the same question at once?
Yes. Blend sends one question to both and puts the answers side by side, and a second model can fact-check the first. There is a free daily tier with no signup.
Blend — one question, multiple AIs, better answers
Related comparisons
Model capabilities and prices change often. Figures come from Blend’s automatically synced registry and are shown for comparison. All model prices · Terms · Privacy Policy · Refund