Claude Opus 4.6 vs DeepSeek-V3.1: Specs & Benchmark Comparison
| Characteristic | Claude Opus 4.6 | DeepSeek-V3.1 |
|---|---|---|
| Company | Anthropic | DeepSeek |
| Release Date | February 4, 2026 | January 9, 2025 |
| Parameters | — | 671B |
| Multimodal | Yes | No |
| Context (input) | 1.0M | 164K |
| Context (output) | 128K | 164K |
| Input Price / 1M | $5.00 | $0.27 |
| Output Price / 1M | $25.00 | $1.00 |
| Average Score | 0.8 | 0.8 |
| Benchmarks | ||
| GPQA | 0.9 | 0.8 |
Visual Benchmark Comparison
Claude Opus 4.6
DeepSeek-V3.1
GPQA0.9 vs 0.8
0.9
0.8
Verdict
Claude Opus 4.6 leads in 2 out of 4 comparison categories.
Overall Performance
Both models show comparable average scores: Claude Opus 4.6 — 0.8, DeepSeek-V3.1 — 0.8.
API Cost
DeepSeek-V3.1 is 23.6x cheaper: input $0.27/1M vs $5.00/1M tokens.
Context Window
Claude Opus 4.6 supports a larger context: 1M vs 164K tokens.
Recency
Claude Opus 4.6 is newer: released 2/4/2026 vs 1/9/2025.
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Frequently Asked Questions
Which is better for coding — Claude Opus 4.6 or DeepSeek-V3.1?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Claude Opus 4.6 or DeepSeek-V3.1?
DeepSeek-V3.1 is cheaper for input: $0.27 per 1M tokens vs $5.00.
Which has a larger context window — Claude Opus 4.6 or DeepSeek-V3.1?
Claude Opus 4.6 supports a larger context: 1,000,000 tokens vs 163,840.
The Claude Opus 4.6 and DeepSeek-V3.1 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Claude Opus 4.6 or DeepSeek-V3.1 page. See also the complete list of AI model comparisons.