Claude 3.7 Sonnet vs Mistral Large 3 675B Instruct
Claude 3.7 Sonnet (2024) and Mistral Large 3 675B Instruct (2025) are frontier reasoning models from Anthropic and MistralAI. Claude 3.7 Sonnet ships a 200k-token context window, while Mistral Large 3 675B Instruct ships a 128k-token context window. On MMLU PRO, Mistral Large 3 675B Instruct leads by 5.2 pts. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Mistral Large 3 675B Instruct is ~500% cheaper at $0.50/1M; pay for Claude 3.7 Sonnet only for coding workflow support.
Decision scorecard
Local evidence first| Signal | Claude 3.7 Sonnet | Mistral Large 3 675B Instruct |
|---|---|---|
| Best for | reasoning-heavy apps, multimodal apps, and tool-calling agents | multimodal apps and provider-routed production |
| Decision fit | Coding, RAG, and Agents | Coding, RAG, and Agents |
| Context window | 200k | 128k |
| Cheapest output | $15/1M tokens | $1.50/1M tokens |
| Provider routes | 6 tracked | 6 tracked |
| Shared benchmarks | 3 shared | MMLU PRO leader |
Decision tradeoffs
- Claude 3.7 Sonnet holds a shared-benchmark lead on HumanEval, ahead by 1 points.
- Claude 3.7 Sonnet has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Claude 3.7 Sonnet uniquely exposes Reasoning, JSON / Tool use, and Code execution in local model data.
- Local decision data tags Claude 3.7 Sonnet for Coding, RAG, and Agents.
- Mistral Large 3 675B Instruct holds a shared-benchmark lead on MMLU PRO, ahead by 5.2 points.
- Mistral Large 3 675B Instruct has the lower cheapest tracked output price at $1.50/1M tokens.
- Local decision data tags Mistral Large 3 675B Instruct for Coding, RAG, and Agents.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Claude 3.7 Sonnet
$6,150
Cheapest tracked route/tier: GCP Vertex AI
Mistral Large 3 675B Instruct
$775
Cheapest tracked route/tier: OpenRouter
Estimated monthly gap: $5,375. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on OpenRouter and AWS Bedrock; start route-level A/B tests there.
- Mistral Large 3 675B Instruct is $13.50/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Reasoning, JSON / Tool use, and Code execution before moving production traffic.
- Provider overlap exists on OpenRouter and AWS Bedrock; start route-level A/B tests there.
- Claude 3.7 Sonnet is $13.50/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Claude 3.7 Sonnet adds Reasoning, JSON / Tool use, and Code execution in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2024-03-04 | 2025-12-01 |
| Context window | 200k | 128k |
| Parameters | — | 675B |
| Architecture | Decoder Only | Decoder Only |
| License | Proprietary | Apache 2.0OSI-approved |
| Openness | Proprietary | Open source |
| Weights | Not released | Unknown |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: conditional | Commercial use: permitted |
| Knowledge cutoff | 2024-11 | 2024-11 |
Pricing and availability
| Pricing attribute | Claude 3.7 Sonnet | Mistral Large 3 675B Instruct |
|---|---|---|
| Input price | $3/1M tokens | $0.50/1M tokens |
| Output price | $15/1M tokens | $1.50/1M tokens |
| Providers |
Capabilities
| Capability | Claude 3.7 Sonnet | Mistral Large 3 675B Instruct |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | Yes |
| Reasoning | Yes | No |
| JSON / Tool use | Yes | No |
| Structured outputs | Yes | Yes |
| Code execution | Yes | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
| Benchmark | Claude 3.7 Sonnet | Mistral Large 3 675B Instruct |
|---|---|---|
| MMLU PRO | 80.3 | 85.5 |
| LiveCodeBench | 68.9 | 82.8 |
| HumanEval | 93.0 | 92.0 |
Continue comparing
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- Claude 3.7 Sonnet vs DeepSeek V4 Flash
- Claude 3.7 Sonnet vs Claude Opus 4.5
- Claude 3.7 Sonnet vs Claude Opus 4.7
- Claude 3.7 Sonnet vs Grok 4
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Last reviewed: 2026-07-26. Data sourced from public model cards and provider documentation.