Model Comparison

Claude 3.7 Sonnet vs Grok-3

Grok-3 shows notably better performance in the majority of benchmarks. Claude 3.7 Sonnet and Grok-3 cost the same.

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Performance Benchmarks

Comparative analysis across standard metrics

4 benchmarks

Claude 3.7 Sonnet outperforms in 1 benchmarks (GPQA), while Grok-3 is better at 3 benchmarks (AIME 2024, AIME 2025, MMMU).

Grok-3 shows notably better performance in the majority of benchmarks.

Wed Apr 01 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Grok-3 costs less

For input processing, Claude 3.7 Sonnet ($3.00/1M tokens) costs the same as Grok-3 ($3.00/1M tokens).

For output processing, Claude 3.7 Sonnet ($15.00/1M tokens) costs the same as Grok-3 ($15.00/1M tokens).

In conclusion, Claude 3.7 Sonnet and Grok-3 cost the same.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Wed Apr 01 2026 • llm-stats.com
Anthropic
Claude 3.7 Sonnet
Input tokens$3.00
Output tokens$15.00
Best providerAnthropic
xAI
Grok-3
Input tokens$3.00
Output tokens$15.00
Best providerxAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Claude 3.7 Sonnet accepts 200,000 input tokens compared to Grok-3's 128,000 tokens. Claude 3.7 Sonnet can generate longer responses up to 128,000 tokens, while Grok-3 is limited to 8,000 tokens.

Anthropic
Claude 3.7 Sonnet
Input200,000 tokens
Output128,000 tokens
xAI
Grok-3
Input128,000 tokens
Output8,000 tokens
Wed Apr 01 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude 3.7 Sonnet and Grok-3 support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Claude 3.7 Sonnet

Text
Images
Audio
Video

Grok-3

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.

Claude 3.7 Sonnet

Proprietary

Closed source

Grok-3

Proprietary

Closed source

Release Timeline

When each model was launched

Claude 3.7 Sonnet was released on 2025-02-24, while Grok-3 was released on 2025-02-17.

Claude 3.7 Sonnet is 0 month newer than Grok-3.

Claude 3.7 Sonnet

Feb 24, 2025

1.1 years ago

1w newer
Grok-3

Feb 17, 2025

1.1 years ago

Knowledge Cutoff

When training data ends

Grok-3 has a documented knowledge cutoff of 2024-11-17, while Claude 3.7 Sonnet's cutoff date is not specified.

We can confirm Grok-3's training data extends to 2024-11-17, but cannot make a direct comparison without Claude 3.7 Sonnet's cutoff date.

Claude 3.7 Sonnet

—

Grok-3

Nov 2024

Provider Availability

Claude 3.7 Sonnet is available from Anthropic, Bedrock, Google. Grok-3 is available from xAI.

Claude 3.7 Sonnet

anthropic logo
Anthropic
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M
bedrock logo
AWS Bedrock
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M
google logo
Google
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M

Grok-3

xai logo
xAI
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Anthropic
Larger context window (200,000 tokens)
Higher GPQA score (84.8% vs 84.6%)
xAI
Higher AIME 2024 score (93.3% vs 80.0%)
Higher AIME 2025 score (93.3% vs 54.8%)
Higher MMMU score (78.0% vs 75.0%)
AnthropicClaude 3.7 Sonnet
xAIGrok-3
Compare in Playground

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude 3.7 Sonnet
xAI
Grok-3

FAQ

Common questions about Claude 3.7 Sonnet vs Grok-3

Grok-3 shows notably better performance in the majority of benchmarks. Claude 3.7 Sonnet is made by Anthropic and Grok-3 is made by xAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
Claude 3.7 Sonnet scores MATH-500: 96.2%, IFEval: 93.2%, MMMLU: 86.1%, GPQA: 84.8%, TAU-bench Retail: 81.2%. Grok-3 scores AIME 2024: 93.3%, AIME 2025: 93.3%, GPQA: 84.6%, LiveCodeBench: 79.4%, MMMU: 78.0%.
Both models cost $3.00 per million input tokens.
Claude 3.7 Sonnet supports 200K tokens and Grok-3 supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (200K vs 128K). See the full comparison above for benchmark-by-benchmark results.
Claude 3.7 Sonnet is developed by Anthropic and Grok-3 is developed by xAI.