Claude Sonnet 4.6 vs Gemini 3.1 Pro
Anthropic's workhorse meets Google's latest Pro model. Both mid-tier, both 1M context — but Gemini 3.1 Pro costs 25% less. See which fits your use case.
Pricing data verified: Jun 7, 2026
| Specification | Claude Sonnet 4.6 (Anthropic) | Gemini 3.1 Pro (Google) |
|---|---|---|
| Input Price (per 1M tokens) | $3.00 | $2.00 |
| Output Price (per 1M tokens) | $15.00 | $12.00 |
| Context Window | 1M tokens | 1M tokens |
| Tier | Mid | Mid |
| Provider | Anthropic |
Calculate Your Exact Costs
Same tier, same context — different price. See how the costs compare for your workload.
Other Models to Consider
Which Model for Which Use Case?
Long-Form Writing
Claude Sonnet 4.6 is renowned for nuanced, high-quality long-form content. If writing quality is paramount, the 25% price premium may be worth it.
Cost-Effective Code Generation
Both models are excellent at code generation. Gemini 3.1 Pro delivers comparable quality at 25% less cost — winning on value for most coding workloads.
Multimodal Tasks
Gemini 3.1 Pro natively handles images, video, and audio alongside text. For multimodal pipelines, Gemini's integration is seamless and cost-effective.
Safety-Conscious Applications
Anthropic's constitutional AI approach makes Claude Sonnet 4.6 the preferred choice for applications requiring careful, harmless outputs — especially in healthcare, finance, or education.
Comparing Anthropic and Google?
APIpulse Pro lets you compare all 39 models, find the cheapest option for your exact usage, and save scenarios for your team.
Frequently Asked Questions
Is Gemini 3.1 Pro cheaper than Claude Sonnet 4.6?
Yes. Gemini 3.1 Pro costs $2.00/M input (33% cheaper than Claude Sonnet 4.6's $3.00/M) and $12.00/M output (20% cheaper than Claude Sonnet 4.6's $15.00/M). Both have 1M context windows.
When should I choose Claude Sonnet 4.6?
Choose Claude Sonnet 4.6 for nuanced long-form writing, safety-conscious applications, complex analysis, or when you need Anthropic's specific API features like extended thinking and system prompts.
How do they compare on quality?
Both are top-tier mid-range models. Claude excels at nuanced writing and safety. Gemini excels at multimodal tasks and Google ecosystem integration. For pure text tasks, quality is comparable — Gemini wins on price.
How much can I save with Gemini 3.1 Pro?
For 1M input + 500K output tokens/month: Claude costs $10.50 vs Gemini at $8.00 — saving $2.50/month (24%). At 10M input + 5M output, you save $25/month.