ChatGPT vs Gemini: which should you use?
A side-by-side look at ChatGPT and Gemini — 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 Gemini 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).
- Gemini 2.5 Pro takes the longer context window (1.0M tokens).
| Representative model | Provider | Context | Input | Output | Images |
|---|---|---|---|---|---|
| ChatGPT — GPT-5.6 Terra | OpenAI | 128K | $0.50 | $1.50 | Yes |
| Gemini — Gemini 2.5 Pro | 1.0M | $1.25 | $10 | 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.
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 Gemini is good at
Strong price-to-performance with fast responses and generous free access — the model behind Blend’s free trial.
- Excellent cost per token
- Fast responses for everyday questions
- Long context and solid multilingual support
Blend — one app that picks the best AI for every question
Related comparisons
Model capabilities and prices change often. Figures come from Blend’s automatically synced registry and are shown for comparison. All model prices