Claude 3.5 Sonnet vs Grok-3: Specs & Benchmark Comparison
| Characteristic | Claude 3.5 Sonnet | Grok-3 |
|---|---|---|
| Company | Anthropic | xAI |
| Release Date | June 21, 2024 | February 16, 2025 |
| Parameters | — | — |
| Multimodal | Yes | Yes |
| Context (input) | 200K | 128K |
| Context (output) | 200K | 8K |
| Input Price / 1M | $3.00 | $3.00 |
| Output Price / 1M | $15.00 | $15.00 |
| Average Score | 0.8 | 0.8 |
| Benchmarks | ||
| GPQA | 0.6 | 0.8 |
Visual Benchmark Comparison
Claude 3.5 Sonnet
Grok-3
GPQA0.6 vs 0.8
0.6
0.8
Verdict
Both models show equal results — the choice depends on your specific use case.
Overall Performance
Both models show comparable average scores: Claude 3.5 Sonnet — 0.8, Grok-3 — 0.8.
API Cost
API cost is identical: input $3.00/1M, output $15.00/1M tokens.
Context Window
Claude 3.5 Sonnet supports a larger context: 200K vs 128K tokens.
Recency
Grok-3 is newer: released 2/16/2025 vs 6/21/2024.
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Frequently Asked Questions
Which is better for coding — Claude 3.5 Sonnet or Grok-3?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Claude 3.5 Sonnet or Grok-3?
Claude 3.5 Sonnet is cheaper for input: $3.00 per 1M tokens vs $3.00.
Which has a larger context window — Claude 3.5 Sonnet or Grok-3?
Claude 3.5 Sonnet supports a larger context: 200,000 tokens vs 128,000.
The Claude 3.5 Sonnet and Grok-3 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Claude 3.5 Sonnet or Grok-3 page. See also the complete list of AI model comparisons.