Comprehensive side-by-side LLM comparison
Grok-3 leads with 9.5% higher average benchmark score. Claude Opus 4.1 offers 96.0K more tokens in context window than Grok-3. Grok-3 is $72.00 cheaper per million tokens. Claude Opus 4.1 is available on 4 providers. Overall, Grok-3 is the stronger choice for coding tasks.
Anthropic
Claude Opus 4.1 represents an iteration within the Claude 4 Opus line, built to deliver refined performance in complex reasoning and analysis tasks. Developed as part of Anthropic's flagship tier, it incorporates improvements to the foundational capabilities that define the Opus family of models.
xAI
Grok 3 was introduced as xAI's third-generation flagship model, designed to push the boundaries of reasoning, factual accuracy, and helpful assistance. Built to advance the state of AI capabilities, it incorporates improvements across language understanding, generation, and analytical thinking.
5 months newer

Grok-3
xAI
2025-02-17

Claude Opus 4.1
Anthropic
2025-08-05
Cost per million tokens (USD)

Claude Opus 4.1

Grok-3
Context window and performance specifications
Average performance across 2 common benchmarks

Claude Opus 4.1

Grok-3
Grok-3
2024-11-17
Available providers and their performance metrics

Claude Opus 4.1
Anthropic
Bedrock
ZeroEval

Claude Opus 4.1

Grok-3

Claude Opus 4.1

Grok-3

Grok-3
xAI