Claude 3.7 Sonnet vs Claude 3 Sonnet
Claude 3.7 Sonnet leads the LLM Stats Score 23.9 to 1.7. Claude 3.7 Sonnet and Claude 3 Sonnet cost the same.
Anthropic · Anthropic · Updated for 2026
Which is better?
Claude 3.7 Sonnet leads the overall LLM Stats Score 23.9 to 1.7, ranking #175 overall.
In the 1 individual benchmarks reported for both models, Claude 3.7 Sonnet wins 1; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Claude 3.7 Sonnet
- overall performance matters — it scores 23.9 and ranks #175 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
- you want the most recent training data — it shipped Feb 2025
Choose Claude 3 Sonnet
- you want predictable pricing at $3.00/M input and $15.00/M output
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
11 reported for Claude 3.7 Sonnet · 11 for Claude 3 Sonnet
Claude 3.7 Sonnet outperforms in 1 benchmarks (GPQA), while Claude 3 Sonnet is better at 0 benchmarks.
Claude 3.7 Sonnet significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Claude 3.7 Sonnet ($3.00/1M tokens) costs the same as Claude 3 Sonnet ($3.00/1M tokens).
For output processing, Claude 3.7 Sonnet ($15.00/1M tokens) costs the same as Claude 3 Sonnet ($15.00/1M tokens).
In conclusion, Claude 3.7 Sonnet and Claude 3 Sonnet cost the same.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Both models have the same input context window of 200,000 tokens. Claude 3 Sonnet can generate longer responses up to 200,000 tokens, while Claude 3.7 Sonnet is limited to 128,000 tokens.
Input capabilities
Documented input modalities across available providers
Both Claude 3.7 Sonnet and Claude 3 Sonnet support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Claude 3.7 Sonnet
Claude 3 Sonnet
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Claude 3.7 Sonnet was released on 2025-02-24, while Claude 3 Sonnet was released on 2024-02-29.
Claude 3.7 Sonnet is 12 months newer than Claude 3 Sonnet.
Feb 24, 2025
1.6 years ago
12mo newerFeb 29, 2024
2.6 years ago
Knowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
Claude 3.7 Sonnet is available from Anthropic, Bedrock, Google. Claude 3 Sonnet is available from Anthropic, Bedrock, Google.
Claude 3.7 Sonnet
Claude 3 Sonnet
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude 3.7 Sonnet and Claude 3 Sonnet side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude 3.7 Sonnet vs Claude 3 Sonnet.