ModelRefs / Claude 3.5 Sonnet vs Claude 3.7 Sonnet
Claude 3.5 Sonnet vs Claude 3.7 Sonnet
Claude 3.5 Sonnet vs Claude 3.7 Sonnet: side-by-side benchmarks, pricing, context windows, coding ability and deployment. Pick the right model for your stack.
Overview
Claude 3.5 Sonnet: Claude 3.5 Sonnet is Anthropic's mid-2024 balanced model, the release that introduced computer use and anchored Anthropic's agentic-coding positioning for its generation across a 200,000-token context window. It is now retired: Anthropic deprecated both the claude-3-5-sonnet-20240620 and claude-3-5-sonnet-20241022 snapshots on 13 August 2025 and retired them on 28 October 2025 on Anthropic-operated platforms, naming Claude Sonnet 5.5 as the replacement.
Claude 3.7 Sonnet: Claude 3.7 Sonnet is Anthropic's February 2025 hybrid reasoning model, combining immediate answers with an optional extended thinking mode in a single model rather than two. Thinking can be budgeted by token count up to a 128,000-token output limit, across a 200,000-token context window. The claude-3-7-sonnet-20250219 snapshot was deprecated on 28 October 2025 and retired on Anthropic-operated platforms on 19 February 2026.
Context window: Claude 3.5 Sonnet accepts up to 200,000 tokens, Claude 3.7 Sonnet up to 200,000. Confirm the limit for your specific deployment channel before relying on it.
Claude 3.5 Sonnet vs Claude 3.7 Sonnet at a glance
| Attribute | Claude 3.5 Sonnet | Claude 3.7 Sonnet |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Released | 2024-06-20 | 2025-02-24 |
| Context window | 200,000 tokens | 200,000 tokens |
| Input price | $3/M tokens | $3/M tokens |
| Output price | $15/M tokens | $15/M tokens |
| Licence | Proprietary | Proprietary |
| Self-hostable | No, hosted only | No, hosted only |
| Modalities | text, vision | text, vision |
Benchmarks reported for both
| Benchmark | Claude 3.5 Sonnet | Claude 3.7 Sonnet | Reported |
|---|---|---|---|
| SWE-Bench Verified (resolved) | 49 | 63.7 | 2025-01-06 / 2025-02-24 |
Each row compares the same benchmark, the same reported metric, and the same task set. Scores are as published by their cited sources on the dates shown. Different runs still use different harnesses and prompts, so treat these as directional evidence rather than a head-to-head result.
Where they differ most
- Coding: Claude 3.5 Sonnet 49%, Claude 3.7 Sonnet 64%. Claude 3.7 Sonnet leads on this dimension.
- Agentic: Claude 3.5 Sonnet 49%, Claude 3.7 Sonnet 64%. Claude 3.7 Sonnet leads on this dimension.
- Cost Efficiency: Claude 3.5 Sonnet 37%, Claude 3.7 Sonnet 37%. Both score the same on this dimension.
Capability scores are ModelRefs' own derived signals, not vendor claims or benchmark results. Validate against your own workload before relying on them.
Continue your research
Use these connected ModelRefs sections to compare alternatives, inspect implementation paths, and review the evidence and governance boundaries relevant to Claude 3.5 Sonnet vs Claude 3.7 Sonnet.
Frequently asked questions
Which is better, Claude 3.5 Sonnet or Claude 3.7 Sonnet?
Claude 3.5 Sonnet and Claude 3.7 Sonnet target different workloads — see the benchmark and pricing tables for a side-by-side answer.
Is Claude 3.5 Sonnet cheaper than Claude 3.7 Sonnet?
Compare $0.00300 vs $0.00300 on this page.