Model comparison
Claude Opus 4.7 vs Grok 3
Claude Opus 4.7 supports text and image inputs alongside vastly larger context windows, whereas Grok 3 focuses on text-only inputs with a cost-efficient, smaller-scale context approach.
Anthropic
Claude Opus 4.7
Anthropic's heavyweight for hard reasoning and agentic work.
xAI
Grok 3
xAI's bet on inference compute, wired into X for fresh context.
Specs
| Metric | Claude Opus 4.7 | Grok 3 |
|---|---|---|
| Context window | 1M tokens↑ | 131K tokens |
| Input $/1M tokens | $5.00 | $3.00↑ |
| Output $/1M tokens | $25.00 | $15.00↑ |
| Modalities | Text · Image | Text |
| Open weights | No | No |
Capability differences
| Capability | Claude Opus 4.7 | Grok 3 |
|---|---|---|
| Prompt caching | Yes | No |
How they differ
Context handling
Claude Opus 4.7
Claude Opus 4.7 handles up to 1,000,000 tokens, enabling extensive and complex reasoning across very large contexts.
Grok 3
Grok 3 supports a maximum of 131,072 tokens, targeting efficient performance within smaller contexts.
Cost profile
Claude Opus 4.7
Claude Opus 4.7 is priced at $5.0 per million input tokens and $25.0 per million output tokens, reflecting its advanced capabilities.
Grok 3
Grok 3 costs $3.0 per million input tokens and $15.0 per million output tokens, offering a more affordable solution for text-only tasks.
Vision
Claude Opus 4.7
Claude Opus 4.7 enables multimodal input by supporting both text and image processing.
Grok 3
Grok 3 is limited to text-only inputs, lacking multimodal capabilities.
Speed
Claude Opus 4.7
Claude Opus 4.7 may experience slower processing times with very large contexts due to its extensive token handling.
Grok 3
Grok 3 offers faster inference for smaller and medium-scale tasks, benefiting from its narrower context size.
Claude Opus 4.7 — what sets it apart
- +Supports multimodal input with both text and image capabilities.
- +Handles up to 1,000,000 tokens in context for detailed and extended reasoning tasks.
Grok 3 — what sets it apart
- +Smaller context window enables faster response times for text-based tasks.
- +Optimized for cost-efficient processing in applications focused on text interactions.
Claude Opus 4.7 excels in multimodal support and extensive context handling, while Grok 3 is optimized for cost-efficiency and quick processing on text-based tasks.
Analysis synthesized from gpt-4o, llama-4-maverick, phi-4, etc.