Claude 3 Opus vs Grok-3 Mini: Specs & Benchmark Comparison
| Characteristic | Claude 3 Opus | Grok-3 Mini |
|---|---|---|
| Company | Anthropic | xAI |
| Release Date | February 29, 2024 | February 16, 2025 |
| Parameters | — | — |
| Multimodal | Yes | Yes |
| Context (input) | 200K | 128K |
| Context (output) | 200K | 8K |
| Input Price / 1M | $15.00 | $0.30 |
| Output Price / 1M | $75.00 | $0.50 |
| Average Score | 0.8 | 0.9 |
| Benchmarks | ||
| GPQA | 0.5 | 0.8 |
Visual Benchmark Comparison
Claude 3 Opus
Grok-3 Mini
GPQA0.5 vs 0.8
0.5
0.8
Verdict
Grok-3 Mini leads in 2 out of 4 comparison categories.
Overall Performance
Both models show comparable average scores: Claude 3 Opus — 0.8, Grok-3 Mini — 0.9.
API Cost
Grok-3 Mini is 112.5x cheaper: input $0.30/1M vs $15.00/1M tokens.
Context Window
Claude 3 Opus supports a larger context: 200K vs 128K tokens.
Recency
Grok-3 Mini is newer: released 2/16/2025 vs 2/29/2024.
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Frequently Asked Questions
Which is better for coding — Claude 3 Opus or Grok-3 Mini?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Claude 3 Opus or Grok-3 Mini?
Grok-3 Mini is cheaper for input: $0.30 per 1M tokens vs $15.00.
Which has a larger context window — Claude 3 Opus or Grok-3 Mini?
Claude 3 Opus supports a larger context: 200,000 tokens vs 128,000.
The Claude 3 Opus and Grok-3 Mini comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Claude 3 Opus or Grok-3 Mini page. See also the complete list of AI model comparisons.