Claude Opus 4.6 vs DeepSeek V4 Flash 0423
Side-by-side API pricing and Artificial Analysis performance for Claude Opus 4.6 (Anthropic) and DeepSeek V4 Flash 0423 (DeepSeek). Green cells mark the better value in each row.
Prices updated Sep 19, 2026, 11:28 PM UTC · refreshed hourly
| Claude Opus 4.6 Anthropic | DeepSeek V4 Flash 0423 DeepSeek | |
|---|---|---|
| Pricing | ||
| Input $/1M | $5.00 | $0.038 |
| Output $/1M | $25.00 | $0.077 |
| Blended $/1M (3:1) | $10.00 | $0.048 |
| RAG example (30K in / 2K out) | $0.2 | $0.001304 |
| Quality & speed | ||
| Intelligence Index | 26.4 | 34.3 |
| Coding Index | — | 69.1 |
| Agentic Index | — | 27.9 |
| Output speed (tok/s) | 0 | 249 |
| Time to first token | 0s | 0.93s |
| Specs | ||
| Context window | 1M | 1.05M |
| Input modalities | text, image, file | text |
FAQ
Which is cheaper, Claude Opus 4.6 or DeepSeek V4 Flash 0423?
DeepSeek V4 Flash 0423 has the lower blended API price at $0.048 per 1M tokens (3:1 input:output mix), versus $10.00 for the other model. Prices are live from OpenRouter and refresh about hourly.
Which is better for RAG workloads?
For a typical RAG request (30K input / 2K output tokens), DeepSeek V4 Flash 0423 costs about $0.001304 per request versus $0.2. Also compare context windows: Claude Opus 4.6 offers 1M and DeepSeek V4 Flash 0423 offers 1.05M.
Which scores higher on Artificial Analysis benchmarks?
DeepSeek V4 Flash 0423 leads on the Artificial Analysis Intelligence Index (34.3 vs 26.4). Check coding and agentic indices on this page for workload-specific tradeoffs.