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Claude Opus 4.6 vs Grok 4
Comprehensive side-by-side LLM comparison
Claude Opus 4.6 leads with 5.2% higher average benchmark score. Claude Opus 4.6 offers 49.5K more tokens in context window than Grok 4. Both models have similar pricing. Claude Opus 4.6 is available on 3 providers. Overall, Claude Opus 4.6 is the stronger choice for coding tasks.
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Anthropic
Claude Opus 4.6, released by Anthropic in February 2026, is a large language model from the Claude 4 family designed for complex agent orchestration, extended reasoning, and long-form code generation. It features a 200K token context window (extendable to 1M tokens in beta), 128K maximum output tokens, native image understanding, and extended thinking with both standard and adaptive effort modes. Opus 4.6 targets multi-step agentic workflows, parallel tool use, and applications requiring sustained reasoning over large contexts.
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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.
6 months newer
Grok 4
xAI
2025-07-10
Claude Opus 4.6
Anthropic
2026-02
Pricing Comparison
Cost per million tokens (USD)
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Claude Opus 4.6
Input:$5.00
Output:$25.00
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Grok 4
Input:$5.00
Output:$25.00
Performance Metrics
Context window and performance specifications
Average performance across 2 common benchmarks
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Claude Opus 4.6
Average Score:75.7%(+5.2%)
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Grok 4
Average Score:70.5%
Performance comparison across key benchmark categories
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Claude Opus 4.6
Science91.3%(+3.8%)
Finance60.1%(+6.6%)
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Grok 4
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Knowledge Cutoff
Training data recency comparison
Claude Opus 4.6
2025-05
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 4.6
3 providers
Anthropic
AWS Bedrock
Google Cloud Vertex AI
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Grok 4
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Claude Opus 4.6
Avg Score:75.7%(+5.2%)
Providers:3
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Grok 4
Avg Score:70.5%
Providers:1