Claude Sonnet 4.5 vs Devstral 2
Compare Anthropic and Mistral AI AI models
Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
Claude Sonnet 4.5
Devstral 2
Cost Differences
Devstral 2 costs less than Claude Sonnet 4.5
Feature Comparison
| Feature | Claude Sonnet 4.5 | Devstral 2 |
|---|---|---|
| Provider | Anthropic | Mistral AI |
| Input Price | $3.00/1M tokens | $0.40/1M tokens |
| Output Price | $15.00/1M tokens | $2.00/1M tokens |
| Context Window | 200,000 tokens | 262,144 tokens |
| Max Output | 64,000 tokens | 32,768 tokens |
| Category | balanced | efficient |
| Capabilities | textvisioncode | textcode |
| Release Date | 9/29/2025 | 12/9/2025 |
Claude Sonnet 4.5 vs Devstral 2: Which Should You Choose?
Choosing between Claude Sonnet 4.5 and Devstral 2 depends on your priorities: cost efficiency, context length, or raw capability. Devstral 2 is the more affordable option at $0.40/1M input tokens — 87% cheaper than Claude Sonnet 4.5. Meanwhile, Devstral 2 offers a significantly larger context window at 262,144 tokens vs 200,000 for Claude Sonnet 4.5.
These models come from different providers — Anthropic and Mistral AI — which means different API ecosystems, SDKs, rate limits, and terms of service. If you're already integrated with Anthropic, switching to Mistral AIinvolves migration effort beyond just pricing. Factor in your existing infrastructure when deciding.
These models target different tiers: Claude Sonnet 4.5 is a balanced model while Devstral 2 is efficient. This means they're optimized for different workloads. Devstral 2 targets more demanding workloads, while Claude Sonnet 4.5 provides a cost-effective option for everyday tasks.
Output costs matter too. Claude Sonnet 4.5 charges $15.00/1M output tokens vs $2.00 for Devstral 2. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Devstral 2 has the edge here at $2.00/1M output tokens.
Multimodal capabilities: Claude Sonnet 4.5 supports vision (image inputs) while Devstral 2 is text-only. If your application needs image understanding, this narrows your choice.
Best Use Cases
Choose Claude Sonnet 4.5 when:
- • You need more capabilities (vision)
- • You need longer outputs (up to 64,000 tokens)
- • You're already using Anthropic's API ecosystem
Choose Devstral 2 when:
- • Budget is a primary concern
- • You need a larger context window (262,144 tokens)
- • You're already using Mistral AI's API ecosystem
- • You're running high-volume, latency-sensitive workloads
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
Claude Sonnet 4.5 (Anthropic)
Devstral 2 (Mistral AI)
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