Claude Opus 4.7 vs Gemini 3 Flash for react: which is better in 2026?

A head-to-head look at Claude Opus 4.7 and Gemini 3 Flash for react. Benchmarks via artificialanalysis.ai, pricing as of May 2026. Compare AI models like these inside Admix.

Quick verdict

For react in May 2026, Claude Opus 4.7 edges out Gemini 3 Flash on the codingIndex metric. Best at modern React patterns, Server Components, and TypeScript inference.

Side-by-side specs

Spec	Claude	Flash
Intelligence index	76.9	63.2
Coding index	82.3	60.5
Context window	1M tokens	1M tokens
Speed (tok/s)	88	260
Input $/M	$15.00	$0.15
Output $/M	$75.00	$0.60
Released	Apr 23, 2026	Feb 12, 2026

How they handle react

Claude Opus 4.7: Best at modern React patterns, Server Components, and TypeScript inference.

Gemini 3 Flash: Fastest mainstream model. The main caveat is weaker on nuanced reasoning.

Cost per 1,000 queries

Assuming 1,500 input and 800 output tokens per query:

Claude Opus 4.7: $82.50 per 1,000 queries
Gemini 3 Flash: $0.70 per 1,000 queries

Verdict by sub-task

Best raw quality on react:
Best price: Gemini 3 Flash
Longest context: Claude Opus 4.7
Fastest: Gemini 3 Flash

FAQ

Is Claude Opus 4.7 better than Gemini 3 Flash for react?

On May 2026 benchmarks (artificialanalysis.ai), Claude Opus 4.7 ranks higher than Gemini 3 Flash for react on the codingIndex metric. The gap is small enough that the choice often comes down to price, context length, and tone.

Which is cheaper, Claude Opus 4.7 or Gemini 3 Flash?

Claude Opus 4.7 costs $15.00 input and $75.00 output per million tokens. Gemini 3 Flash costs $0.15 input and $0.60 output per million tokens.

Can I use both Claude and Flash in one app?

Yes. Admix is a multi model AI chat aggregator that lets you run Claude Opus 4.7 and Gemini 3 Flash side by side under one subscription.

Sources

Benchmarks from artificialanalysis.ai (May 2026).

Try both Claude and Flash in Admix

One subscription, side-by-side answers, no API plumbing. From $8.99/mo.

Try Admix free