Claude 3.5 Sonnet vs Mercury 2: Specs & Benchmark Comparison
| Characteristic | Claude 3.5 Sonnet | Mercury 2 |
|---|---|---|
| Company | Anthropic | Inception |
| Release Date | June 21, 2024 | February 1, 2026 |
| Parameters | — | — |
| Multimodal | Yes | No |
| Context (input) | 200K | — |
| Context (output) | 200K | — |
| Input Price / 1M | $3.00 | — |
| Output Price / 1M | $15.00 | — |
| Average Score | 0.8 | 0.7 |
| Benchmarks | ||
| GPQA | 0.6 | 0.7 |
Visual Benchmark Comparison
Claude 3.5 Sonnet
Mercury 2
GPQA0.6 vs 0.7
0.6
0.7
Verdict
Mercury 2 leads in 1 out of 2 comparison categories.
Overall Performance
Both models show comparable average scores: Claude 3.5 Sonnet — 0.8, Mercury 2 — 0.7.
Recency
Mercury 2 is newer: released 2/1/2026 vs 6/21/2024.
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Frequently Asked Questions
Which is better for coding — Claude 3.5 Sonnet or Mercury 2?
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 Mercury 2?
API pricing data is available on the individual model pages.
Which has a larger context window — Claude 3.5 Sonnet or Mercury 2?
Context window data is available on the individual model pages.
The Claude 3.5 Sonnet and Mercury 2 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 Mercury 2 page. See also the complete list of AI model comparisons.