Choose Google Gemini 3.7 Flash if
- ✓ You need audio, files, image or video input
- ✓ Cost per million tokens is a major factor
- ✓ Your task is media analysis or document extraction
Head to head · OpenRouter
Google Gemini 3.7 Flash vs Claude Sonnet 5
Gemini 3.7 Flash offers broader multimodal input at lower cost; Claude Sonnet 5 is usually stronger for code, writing and agent reliability.
Quick verdict
Gemini 3.7 Flash is better for media, files and cost-sensitive multimodal work. Claude Sonnet 5 is the safer default for production coding, technical writing and agent workflows.
Side-by-side comparison
| Field | Google Gemini 3.7 Flash | Claude Sonnet 5 |
|---|---|---|
| Provider | Anthropic | |
| Context window | 1.05M tokens | 1M tokens |
| Input / 1M | $0.750 | $2.00 |
| Output / 1M | $3.75 | $10.00 |
| Modalities | Text, Vision, Audio, Video, Files | Text, Vision, Files |
| Best for | Multimodal, Overall, Long Context | Overall, Coding, Agents |
Source
openrouter.ai/api/v1/models Verified 2026-10-16 Cost estimates
| Workload | Input | Output | Google Gemini 3.7 Flash | Claude Sonnet 5 |
|---|---|---|---|---|
| Quick test | 20,000 | 5,000 | $0.034 | $0.090 |
| Product chat month | 500,000 | 125,000 | $0.844 | $2.25 |
| Document batch | 5,000,000 | 1,000,000 | $7.50 | $20.00 |
Estimates use list input/output prices and exclude cache discounts, provider surcharges and tool fees.
Choose Claude Sonnet 5 if
- ✓ You need strong code generation and debugging
- ✓ Your agent needs reliable tool behavior
- ✓ Output quality matters more than token cost
FAQ
Is Google Gemini 3.7 Flash cheaper than Claude Sonnet 5?
Google Gemini 3.7 Flash costs $0.750 input and $3.75 output per 1M tokens. Claude Sonnet 5 costs $2.00 input and $10.00 output per 1M tokens.
Which model has the larger context window?
Google Gemini 3.7 Flash offers 1.05M tokens; Claude Sonnet 5 offers 1M tokens. Provider-specific limits can vary by route.
Which one should I choose?
Gemini 3.7 Flash is better for media, files and cost-sensitive multimodal work. Claude Sonnet 5 is the safer default for production coding, technical writing and agent workflows.
Google Gemini 3.7 Flash details Claude Sonnet 5 details Estimate monthly cost
Pricing and context data are based on a 2026-10-16 snapshot. Provider limits and pricing can change; verify on OpenRouter before production.