Claude 3.5 Sonnet vs Gemini 3 Flash: Specs & Benchmark Comparison
| Characteristic | Claude 3.5 Sonnet | Gemini 3 Flash |
|---|---|---|
| Company | Anthropic | |
| Release Date | June 21, 2024 | December 16, 2025 |
| Parameters | — | — |
| Multimodal | Yes | Yes |
| Context (input) | 200K | 1.0M |
| Context (output) | 200K | 66K |
| Input Price / 1M | $3.00 | $0.50 |
| Output Price / 1M | $15.00 | $3.00 |
| Average Score | 0.8 | 0.9 |
| Benchmarks | ||
| GPQA | 0.6 | 0.9 |
Visual Benchmark Comparison
Claude 3.5 Sonnet
Gemini 3 Flash
GPQA0.6 vs 0.9
0.6
0.9
Verdict
Gemini 3 Flash leads in 3 out of 4 comparison categories.
Overall Performance
Both models show comparable average scores: Claude 3.5 Sonnet — 0.8, Gemini 3 Flash — 0.9.
API Cost
Gemini 3 Flash is 5.1x cheaper: input $0.50/1M vs $3.00/1M tokens.
Context Window
Gemini 3 Flash supports a larger context: 1M vs 200K tokens.
Recency
Gemini 3 Flash is newer: released 12/16/2025 vs 6/21/2024.
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Frequently Asked Questions
Which is better for coding — Claude 3.5 Sonnet or Gemini 3 Flash?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Claude 3.5 Sonnet or Gemini 3 Flash?
Gemini 3 Flash is cheaper for input: $0.50 per 1M tokens vs $3.00.
Which has a larger context window — Claude 3.5 Sonnet or Gemini 3 Flash?
Gemini 3 Flash supports a larger context: 1,048,576 tokens vs 200,000.
The Claude 3.5 Sonnet and Gemini 3 Flash comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Claude 3.5 Sonnet or Gemini 3 Flash page. See also the complete list of AI model comparisons.