Grok-1.5 vs Claude 3.7 Sonnet

Comparing Grok-1.5 by xAI and Claude 3.7 Sonnet by Anthropic across benchmarks, pricing, and capabilities.

Claude 3.7 Sonnet significantly outperforms across most benchmarks.

Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

Grok-1.5 outperforms in 0 benchmarks, while Claude 3.7 Sonnet is better at 2 benchmarks (GPQA, MMMU).

Claude 3.7 Sonnet significantly outperforms across most benchmarks.

Tue Mar 24 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Cost data unavailable.

Lowest available price from all providers
Tue Mar 24 2026 • llm-stats.com
xAI
Grok-1.5
Input tokens$0.00
Output tokens$0.00
Best providerUnknown Organization
Anthropic
Claude 3.7 Sonnet
Input tokens$3.00
Output tokens$15.00
Best providerAnthropic
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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).

xAI
Grok-1.5
Input- tokens
Output- tokens
Anthropic
Claude 3.7 Sonnet
Input200,000 tokens
Output128,000 tokens
Tue Mar 24 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

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.

Grok-1.5

Text
Images
Audio
Video

Claude 3.7 Sonnet

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Grok-1.5

Proprietary

Closed source

Claude 3.7 Sonnet

Proprietary

Closed source

Release Timeline

When each model was launched

Grok-1.5 was released on 2024-03-28, while Claude 3.7 Sonnet was released on 2025-02-24.

Claude 3.7 Sonnet is 11 months newer than Grok-1.5.

Grok-1.5

Mar 28, 2024

2.0 years ago

Claude 3.7 Sonnet

Feb 24, 2025

1.1 years ago

11mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

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Key Takeaways

Larger context window (200,000 tokens)
Supports multimodal inputs
Higher GPQA score (84.8% vs 35.9%)
Higher MMMU score (75.0% vs 53.6%)
xAIGrok-1.5
AnthropicClaude 3.7 Sonnet

Detailed Comparison

AI Model Comparison Table
Feature
xAI
Grok-1.5
Anthropic
Claude 3.7 Sonnet