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Claude Opus 4.1 vs Grok 4
Comprehensive side-by-side LLM comparison
Claude Opus 4.1 leads with 8.0% higher average benchmark score. Grok 4 offers 46.5K more tokens in context window than Claude Opus 4.1. Grok 4 is $60.00 cheaper per million tokens. Claude Opus 4.1 is available on 3 providers. Overall, Claude Opus 4.1 is the stronger choice for coding tasks.
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Anthropic
Claude Opus 4.1, released by Anthropic in August 2025, is a large language model from the Claude 4 family optimized for demanding reasoning, multi-step coding, and extended analysis tasks. It features a 200K token context window, 32K maximum output tokens, native image understanding, and extended thinking capabilities. Opus 4.1 targets complex problem-solving, multi-turn reasoning workflows, and applications requiring deep analysis with integrated tool use.
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xAI
Grok 4, released by xAI on July 10, 2025, is a large language model featuring first-principles reasoning and comprehensive multimodal support. It features a 260K token context window and demonstrated strong performance on advanced reasoning and coding benchmarks. Grok 4 targets complex multi-step reasoning tasks, scientific analysis, and agentic workflows via the xAI API.
26 days newer
Grok 4
xAI
2025-07-10
Claude Opus 4.1
Anthropic
2025-08-05
Pricing Comparison
Cost per million tokens (USD)
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Claude Opus 4.1
Input:$15.00
Output:$75.00
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Grok 4
Input:$5.00
Output:$25.00($60.00 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 2 common benchmarks
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Claude Opus 4.1
Average Score:62.3%(+8.0%)
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Grok 4
Average Score:54.3%
Performance comparison across key benchmark categories
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Claude Opus 4.1
Science80.9%
Agents43.6%(+22.5%)
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Grok 4
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Knowledge Cutoff
Training data recency comparison
Claude Opus 4.1
2025-01
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Claude Opus 4.1
3 providers
Anthropic
AWS Bedrock
Google Cloud Vertex AI
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Grok 4
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Claude Opus 4.1
Avg Score:62.3%(+8.0%)
Providers:3
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Grok 4
Avg Score:54.3%
Providers:1