Claude 3.7 Sonnet vs Claude 3.5 Sonnet
Claude 3.7 Sonnet (2024) and Claude 3.5 Sonnet (2024) are frontier-tier reasoning models from Anthropic. Claude 3.7 Sonnet ships a 200k-token context window, while Claude 3.5 Sonnet ships a 200k-token context window. On MMLU PRO, Claude 3.7 Sonnet leads by 3.1 pts. On pricing, both list $3/1M input and $15/1M output tokens on the cheapest tracked route. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Pick Claude 3.7 Sonnet for general evaluation; token pricing is tied, so keep Claude 3.5 Sonnet only for already-validated prompts or route constraints.
Decision scorecard
Local evidence first| Signal | Claude 3.7 Sonnet | Claude 3.5 Sonnet |
|---|---|---|
| Best for | reasoning-heavy apps, multimodal apps, and tool-calling agents | reasoning-heavy apps, multimodal apps, and tool-calling agents |
| Decision fit | Coding, RAG, and Agents | Coding, RAG, and Agents |
| Context window | 200k | 200k |
| Cheapest output | $15/1M tokens | $15/1M tokens |
| Provider routes | 6 tracked | 6 tracked |
| Shared benchmarks | MMLU PRO leader | 6 shared |
Decision tradeoffs
- Claude 3.7 Sonnet holds a shared-benchmark lead on MMLU PRO, ahead by 3.1 points.
- Claude 3.7 Sonnet uniquely exposes Tool use in local model data.
- Local decision data tags Claude 3.7 Sonnet for Coding, RAG, and Agents.
- Local decision data tags Claude 3.5 Sonnet 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
Claude 3.5 Sonnet
$6,150
Cheapest tracked route/tier: GCP Vertex AI
Estimated monthly gap: $0.00. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on GCP Vertex AI, AWS Bedrock, and Anthropic; start route-level A/B tests there.
- Cheapest tracked output pricing is tied, so migration risk shifts to quality, latency, and provider packaging.
- Check replacement coverage for Tool use before moving production traffic.
- Provider overlap exists on GCP Vertex AI, Replicate API, and OpenRouter; start route-level A/B tests there.
- Cheapest tracked output pricing is tied, so migration risk shifts to quality, latency, and provider packaging.
- Claude 3.7 Sonnet adds Tool use in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2024-03-04 | 2024-06-20 |
| Context window | 200k | 200k |
| Parameters | — | 70B |
| Architecture | Decoder Only | Decoder Only |
| License | Proprietary | Proprietary |
| Openness | Proprietary | Proprietary |
| Commercial use | Commercial use: conditional | Commercial use: conditional |
| Knowledge cutoff | 2024-11 | 2024-04 |
Pricing and availability
| Pricing attribute | Claude 3.7 Sonnet | Claude 3.5 Sonnet |
|---|---|---|
| Input price | $3/1M tokens | $3/1M tokens |
| Output price | $15/1M tokens | $15/1M tokens |
| Providers |
Capabilities
| Capability | Claude 3.7 Sonnet | Claude 3.5 Sonnet |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | Yes |
| Reasoning | Yes | Yes |
| Function calling | Yes | Yes |
| Tool use | Yes | No |
| Structured outputs | Yes | Yes |
| Code execution | Yes | Yes |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
| Benchmark | Claude 3.7 Sonnet | Claude 3.5 Sonnet |
|---|---|---|
| MMLU PRO | 80.3 | 77.2 |
| SWE-bench Verified | 70.3 | 49.0 |
| LiveCodeBench | 68.9 | 48.7 |
| Massive Multi-discipline Multimodal Understanding | 75.0 | 68.3 |
| HumanEval | 93.0 | 92.0 |
| Aider Polyglot | 64.9 | 51.6 |
Deep dive
On shared benchmark coverage, MMLU PRO has Claude 3.7 Sonnet at 80.3 and Claude 3.5 Sonnet at 77.2, with Claude 3.7 Sonnet ahead by 3.1 points; SWE-bench Verified has Claude 3.7 Sonnet at 70.3 and Claude 3.5 Sonnet at 49, with Claude 3.7 Sonnet ahead by 21.3 points; LiveCodeBench has Claude 3.7 Sonnet at 68.9 and Claude 3.5 Sonnet at 48.7, with Claude 3.7 Sonnet ahead by 20.2 points. The largest visible gap is 21.3 points on SWE-bench Verified, which matters most when that benchmark mirrors your workload. Treat isolated benchmark wins as directional, because provider routing, prompt style, and tool access can move real application results.
The capability footprint differs most on tool use: Claude 3.7 Sonnet. Both models share vision, multimodal input, reasoning mode, and function calling, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
For cost, Claude 3.7 Sonnet lists $3/1M input and $15/1M output tokens on the cheapest tracked provider, while Claude 3.5 Sonnet lists $3/1M input and $15/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend is tied on the cheapest tracked routes. Availability is 6 providers versus 6, so concentration risk also matters.
Choose Claude 3.7 Sonnet when coding workflow support are central to the workload. Choose Claude 3.5 Sonnet when coding workflow support are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship.
FAQ
Which has a larger context window, Claude 3.7 Sonnet or Claude 3.5 Sonnet?
Claude 3.7 Sonnet supports 200k tokens, while Claude 3.5 Sonnet supports 200k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Claude 3.7 Sonnet or Claude 3.5 Sonnet?
Neither is cheaper on tracked token pricing. Both list $3/1M input and $15/1M output tokens on the cheapest tracked route. Provider discounts, batch pricing, or route-specific tiers can still change the final bill.
Is Claude 3.7 Sonnet or Claude 3.5 Sonnet open source?
Claude 3.7 Sonnet is listed under Proprietary. Claude 3.5 Sonnet is listed under Proprietary. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for vision, Claude 3.7 Sonnet or Claude 3.5 Sonnet?
Both Claude 3.7 Sonnet and Claude 3.5 Sonnet expose vision. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Which is better for multimodal input, Claude 3.7 Sonnet or Claude 3.5 Sonnet?
Both Claude 3.7 Sonnet and Claude 3.5 Sonnet expose multimodal input. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Where can I run Claude 3.7 Sonnet and Claude 3.5 Sonnet?
Claude 3.7 Sonnet is available on Snowflake Cortex, GCP Vertex AI, Replicate API, OpenRouter, and AWS Bedrock. Claude 3.5 Sonnet is available on GCP Vertex AI, AWS Bedrock, Anthropic, OpenRouter, and Microsoft Foundry. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-06-15. Data sourced from public model cards and provider documentation.