Claude Sonnet 5 vs Gemini 3 Pro
Pricing verdict: Claude Sonnet 5 vs Gemini 3 Pro: input pricing is tied at $2.00/M, Claude Sonnet 5 is cheaper for output-heavy usage ($10.00/M output), and Gemini 3 Pro is better for long-context tasks (2,000,000 tokens).
Direct answer: input pricing is tied. Choose Claude Sonnet 5 for cheaper output and choose Gemini 3 Pro when your workload needs longer context.
Compare API pricing, input and output token costs, context windows, and monthly estimates on one page so you can pick the right model fast.
Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
Claude Sonnet 5
Gemini 3 Pro
Cost Differences
Gemini 3 Pro costs more than Claude Sonnet 5
Quick Recommendation
Winner for direct API pricing: Claude Sonnet 5. At the default workload, Claude Sonnet 5 saves about $3.00/month ($36.50/year) versus Gemini 3 Pro.
Feature Comparison
| Feature | Claude Sonnet 5 | Gemini 3 Pro |
|---|---|---|
| Provider | Anthropic | |
| Input Price | $2.00/1M tokens | $2.00/1M tokens |
| Output Price | $10.00/1M tokens | $12.00/1M tokens |
| Context Window | 1,000,000 tokens | 2,000,000 tokens |
| Max Output | 128,000 tokens | 131,072 tokens |
| Category | balanced | flagship |
| Capabilities | textvisioncodereasoningcomputer-use | textvisionaudiovideocode |
| Release Date | 6/30/2026 | 11/18/2025 |
Claude Sonnet 5 vs Gemini 3 Pro: Which Should You Choose?
Choosing between Claude Sonnet 5 and Gemini 3 Pro depends on your priorities: cost efficiency, context length, or raw capability. Both models charge $2.00/1M input tokens, but Claude Sonnet 5 is cheaper on output at $10.00/1M. Meanwhile, Gemini 3 Pro offers a significantly larger context window at 2,000,000 tokens vs 1,000,000 for Claude Sonnet 5.
These models come from different providers — Anthropic and Google — which means different API ecosystems, SDKs, rate limits, and terms of service. If you're already integrated with Anthropic, switching to Googleinvolves migration effort beyond just pricing. Factor in your existing infrastructure when deciding.
These models target different tiers: Claude Sonnet 5 is a balanced model while Gemini 3 Pro is flagship. This means they're optimized for different workloads. Gemini 3 Pro targets more demanding workloads, while Claude Sonnet 5 provides a cost-effective option for everyday tasks.
Output costs matter too. Claude Sonnet 5 charges $10.00/1M output tokens vs $12.00 for Gemini 3 Pro. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Claude Sonnet 5 has the edge here at $10.00/1M output tokens.
Multimodal capabilities: Both models support vision (image understanding), so you can send images alongside text prompts with either option.
Best Use Cases
Choose Claude Sonnet 5 when:
- • You're already using Anthropic's API ecosystem
Choose Gemini 3 Pro when:
- • You need a larger context window (2,000,000 tokens)
- • You need longer outputs (up to 131,072 tokens)
- • You're already using Google's API ecosystem
Pros and Caveats at a Glance
Claude Sonnet 5
- • Input pricing: $2.00/M tokens
- • Output pricing: $10.00/M tokens
- • Context window: 1,000,000 tokens
- • Max output: 128,000 tokens
Watch out for
- • Smaller context window than Gemini 3 Pro
Gemini 3 Pro
- • Input pricing: $2.00/M tokens
- • Output pricing: $12.00/M tokens
- • Context window: 2,000,000 tokens
- • Max output: 131,072 tokens
Watch out for
- • Higher output cost than Claude Sonnet 5
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
Claude Sonnet 5 (Anthropic)
Gemini 3 Pro (Google)
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Which is cheaper, Claude Sonnet 5 or Gemini 3 Pro?▼
What is the context window difference between Claude Sonnet 5 and Gemini 3 Pro?▼
Which model is better for AI Chatbot?▼
Which model has better overall pricing for heavy usage?▼
Where can I compare Anthropic and Google API pricing beyond this model matchup?▼
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