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Comparison

Claude vs ChatGPT vs Gemini — why not all three?

Each of the big three is best at something different. Here's an honest, side-by-side look — and why the smartest move in 2026 is to stop picking one.

OpenAIGPT
ClaudeClaude
GeminiGemini
GrokGrok
+ 50 more · one login
Which model should I use to ship this feature?
OpenAI
GPT-4o
Ship it with a queue worker — here's the handler.
Claude
Claude
Add a retry + idempotency key so it's safe to re-run.
Gemini
Gemini
Watch the 30s timeout — move it off the request path.
Ask all of them at once — keep the best answer.
OpenAIGPT-4o
ClaudeClaude 3.5
GeminiGemini
GrokGrok 2
OpenAIGPT-4 Turbo
ClaudeClaude Opus
GeminiGemini Ultra
OpenAIGPT-4o
ClaudeClaude 3.5
GeminiGemini
GrokGrok 2
OpenAIGPT-4 Turbo
ClaudeClaude Opus
GeminiGemini Ultra
Feature
Claude
ChatGPT (GPT)
Gemini
Best at
Long-form reasoning, writing & code
Broad general use & huge ecosystem
Massive context & Google-apps integration
Tone
Thoughtful, careful
Versatile, familiar
Concise, factual
Context window
Very large
Large
Largest
Coding
Excellent
Excellent
Strong
Pick it when
You want the best writing/reasoning
You want a safe all-rounder
You live in Google & need huge context

In AiMixup you don't choose — run all three side by side and keep the best answer.

Don't bet your work on one model. Run all three in AiMixup.

See it in action
aimixup.com/app
Live demo

Ask any model — and switch mid-conversation.

Watch the full 3-minute product tour

Why run them together

Different strengths, one workspace

Ask Claude, GPT and Gemini the same question side by side and keep the best answer — no switching apps or subscriptions.

Always on the latest

New model versions land in AiMixup as they ship — you're never stuck on last year's model.

Beyond chat

Take the best answer straight into a Kanban task and let an agent execute it — with your team.

Run Claude, GPT and Gemini side by side

Create your account, get bonus credits, and compare all three on your own task.

Frequently asked questions

Which is best — Claude, ChatGPT or Gemini?

It depends on the task: Claude leads on long-form reasoning and writing, GPT is the versatile all-rounder with the biggest ecosystem, and Gemini offers the largest context and tight Google integration. The most reliable approach is to compare them on your actual task — which AiMixup lets you do side by side.

Can I use all three in one place?

Yes. AiMixup runs 50+ models including Claude, GPT and Gemini side by side under one subscription, so you can compare answers and pick the best.

Do I need three separate subscriptions?

No — that's the point. AiMixup gives you Claude, GPT, Gemini and more for one subscription, with BYOK if you prefer your own keys.