Key Takeaways
Claude Sonnet 4.6 wins:
- Higher intelligence benchmark
- Better at coding
Gemini 3 Flash Preview wins:
- Cheaper input tokens
- Cheaper output tokens
- Larger context window
- Faster response time
- Better at math
Price Advantage
Gemini 3 Flash Preview
Benchmark Advantage
Claude Sonnet 4.6
Context Window
Gemini 3 Flash Preview
Speed
Gemini 3 Flash Preview
Pricing Comparison
Price Comparison
| Metric | Claude Sonnet 4.6 | Gemini 3 Flash Preview | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $3.00 | $0.50 | Gemini 3 Flash Preview |
| Output (per 1M tokens) | $15.00 | $3.00 | Gemini 3 Flash Preview |
| Cache Read (per 1M) | $0.30 | $0.05 | Gemini 3 Flash Preview |
| Cache Write (per 1M) | $3.75 | $0.08 | Gemini 3 Flash Preview |
Using a 3:1 input/output ratio, Gemini 3 Flash Preview is 81% cheaper overall.
Claude Sonnet 4.6 Providers
No provider data available
Gemini 3 Flash Preview Providers
No provider data available
Benchmark Comparison
6
Benchmarks Compared
2
Claude Sonnet 4.6 Wins
1
Gemini 3 Flash Preview Wins
Benchmark Scores
| Benchmark | Claude Sonnet 4.6 | Gemini 3 Flash Preview | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | 42.6 | 35.0 | |
Coding Index Code generation & understanding | 43.0 | 37.8 | |
Math Index Mathematical reasoning | - | 55.7 | - |
MMLU Pro Academic knowledge | - | 88.2 | - |
GPQA Graduate-level science | 79.7 | 81.2 | |
LiveCodeBench Competitive programming | - | 79.7 | - |
Claude Sonnet 4.6 significantly outperforms in coding benchmarks.
Cost vs Quality
X-axis:
Y-axis:
Loading chart...
Other models
Context & Performance
Context Window
Claude Sonnet 4.6
1,000,000
tokens
Gemini 3 Flash Preview
1,048,576
tokens
Gemini 3 Flash Preview has a 5% larger context window.
Speed Performance
| Metric | Claude Sonnet 4.6 | Gemini 3 Flash Preview | Winner |
|---|---|---|---|
| Tokens/second | 56.7 tok/s | 175.7 tok/s | |
| Time to First Token | 1.07s | 0.86s |
Gemini 3 Flash Preview responds 210% faster on average.
Capabilities
Feature Comparison
| Feature | Claude Sonnet 4.6 | Gemini 3 Flash Preview |
|---|---|---|
| Vision (Image Input) | ||
| Tool/Function Calls | ||
| Reasoning Mode | ||
| Audio Input | ||
| Audio Output | ||
| PDF Input | ||
| Prompt Caching | ||
| Web Search |
License & Release
| Property | Claude Sonnet 4.6 | Gemini 3 Flash Preview |
|---|---|---|
| License | Proprietary | Proprietary |
| Author | Anthropic | |
| Released | Feb 2026 | Dec 2025 |
Claude Sonnet 4.6 Modalities
Input
textimage
Output
text
Gemini 3 Flash Preview Modalities
Input
textimagefileaudiovideo
Output
text