Claude 3.7 Sonnet vs Grok-1.5
Claude 3.7 Sonnet leads the LLM Stats Score 24.1 to -2.5.
Anthropic · xAI · Updated for 2026
Which is better?
Claude 3.7 Sonnet leads the overall LLM Stats Score 24.1 to -2.5, ranking #159 overall.
In the 2 individual benchmarks reported for both models, Claude 3.7 Sonnet wins 2; 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 24.1 and ranks #159 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 2 of 2 exact shared results
- you want the most recent training data — it shipped Feb 2025
Choose Grok-1.5
- you are already invested in the xAI ecosystem
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 · 9 for Grok-1.5
Claude 3.7 Sonnet outperforms in 2 benchmarks (GPQA, MMMU), while Grok-1.5 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
Context Window
Maximum input and output token capacity
Only Claude 3.7 Sonnet specifies input context (200,000 tokens). Only Claude 3.7 Sonnet specifies output context (128,000 tokens).
Input capabilities
Documented input modalities across available providers
Claude 3.7 Sonnet supports multimodal inputs, whereas Grok-1.5 does not.
Claude 3.7 Sonnet can handle both text and other forms of data like images, making it suitable for multimodal applications.
Claude 3.7 Sonnet
Grok-1.5
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 Grok-1.5 was released on 2024-03-28.
Claude 3.7 Sonnet is 11 months newer than Grok-1.5.
Feb 24, 2025
1.5 years ago
11mo newerMar 28, 2024
2.4 years ago
Knowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude 3.7 Sonnet and Grok-1.5 side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude 3.7 Sonnet vs Grok-1.5.