Comprehensive side-by-side LLM comparison
Claude Opus 4.6 leads with 82.3% higher average benchmark score. Claude Opus 4.6 offers 180.5K more tokens in context window than Grok 3 mini. Grok 3 mini is $29.20 cheaper per million tokens. Claude Opus 4.6 supports multimodal inputs. Claude Opus 4.6 is available on 3 providers. Overall, Claude Opus 4.6 is the stronger choice for coding tasks.
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.
xAI
Grok 3 mini, released by xAI alongside Grok 3 in February 2025, is a compact reasoning model from the Grok 3 family featuring RL-enhanced Think mode for extended chain-of-thought processing. It features a 131K token context window and targets STEM tasks, mathematics, and coding applications where cost-efficient reasoning with configurable depth is required.
11 months newer

Grok 3 mini
xAI
2025-02-17

Claude Opus 4.6
Anthropic
2026-02
Cost per million tokens (USD)
Claude Opus 4.6
Grok 3 mini
Context window and performance specifications
Average performance across 1 common benchmarks
Claude Opus 4.6
Grok 3 mini
Performance comparison across key benchmark categories
Claude Opus 4.6
Grok 3 mini
Claude Opus 4.6
2025-05
Available providers and their performance metrics
Claude Opus 4.6
Anthropic
AWS Bedrock
Google Cloud Vertex AI
Grok 3 mini
Claude Opus 4.6
Grok 3 mini
Claude Opus 4.6
Grok 3 mini
xAI