Claude 3 Sonnet vs Gemini 3 Flash
Anthropic vs Google — benchmarks, pricing, and capabilities side by side.
- •Gemini 3 Flash has the higher intelligence index (90.2 vs 45.8)
- •Gemini 3 Flash is cheaper ($0.50 vs $3.00 per 1M input)
- •Gemini 3 Flash is faster
- •Gemini 3 Flash has a larger context window (1M)
| Claude 3 Sonnet | Gemini 3 Flash | |
|---|---|---|
| Intelligence index | 45.8 | 90.2 |
| Developer | Anthropic | |
| Type | Multimodal | Multimodal |
| Access | API only | API only |
| Context window | 200,000 tokens | 1,048,576 tokens |
| Input price | $3.00 / 1M | $0.50 / 1M |
| Output price | $15.00 / 1M | $3.00 / 1M |
| Speed | 120 tok/s | 191 tok/s |
| Released | February 29, 2024 | December 17, 2025 |
| Parameters | — | — |
| Input modalities | — | Text, Image, Audio, Video |
| Output modalities | — | Text |
Shared benchmarks
Claude 3 Sonnet
Gemini 3 Flash
GPQA Diamond
40.4
90.4
Humanity’s Last Exam
3.8
34.7
LiveCodeBench
17.5
90.8
MMLU-Pro
56.8
89