Anthropic: Claude Sonnet 4.6 (batch) vs DeepSeek: DeepSeek V4 Flash 0731
Based on weekly OpenRouter usage tracked by AI Tier List, DeepSeek: DeepSeek V4 Flash 0731 ranks #1 overall — ahead of Anthropic: Claude Sonnet 4.6 (batch) at #18. DeepSeek: DeepSeek V4 Flash 0731 is cheaper on input tokens at $0.14/1M vs $1.50/1M for Anthropic: Claude Sonnet 4.6 (batch). DeepSeek: DeepSeek V4 Flash 0731 offers the larger context window at 1M tokens.
Anthropic: Claude Sonnet 4.6 (batch) vs DeepSeek: DeepSeek V4 Flash 0731: which should you use?
Choose Anthropic: Claude Sonnet 4.6 (batch) if…
- It accepts image, file input, which DeepSeek: DeepSeek V4 Flash 0731 does not.
Choose DeepSeek: DeepSeek V4 Flash 0731 if…
- It sees more real traffic — #1 overall on OpenRouter's weekly ranking, against #18 for Anthropic: Claude Sonnet 4.6 (batch).
- Cheaper to read — $0.14 vs $1.50 per 1M input tokens, which is what dominates long-prompt and RAG workloads.
- Cheaper to write — $0.28 vs $7.50 per 1M output tokens, the line item that decides generation-heavy costs.
- Bigger context window — 1M vs 1M tokens.
- Higher Artificial Analysis intelligence index — 51.8 vs 48.4.
- Higher Artificial Analysis coding score — 69.1 vs 63.0.
- Higher Artificial Analysis agentic score — 48.4 vs 42.1.
- It is the newer model — released Jul 2026 against Feb 2026.
Spec Comparison
| Spec | Anthropic: Claude Sonnet 4.6 (batch) | DeepSeek: DeepSeek V4 Flash 0731 |
|---|---|---|
| Author | anthropic | deepseek |
| Input price (per 1M tokens) | $1.50 | $0.14 |
| Output price (per 1M tokens) | $7.50 | $0.28 |
| Context window | 1M | 1M |
| Input modalities | text, image, file | text |
| Output modalities | text | text |
| AA Intelligence | 48.4 | 51.8 |
| AA Coding | 63.0 | 69.1 |
| AA Agentic | 42.1 | 48.4 |
| Released | Feb 2026 | Jul 2026 |
What Anthropic: Claude Sonnet 4.6 (batch) and DeepSeek: DeepSeek V4 Flash 0731 actually cost to run
On a read-heavy job — 1M tokens in, 100K out — Anthropic: Claude Sonnet 4.6 (batch) costs $2.25 and DeepSeek: DeepSeek V4 Flash 0731 costs $0.17.
Flip the shape — 100K in, 1M out — and it becomes $7.65 for Anthropic: Claude Sonnet 4.6 (batch) versus $0.29 for DeepSeek: DeepSeek V4 Flash 0731.
Both figures are the published per-token rates multiplied out; caching and batch discounts are not included.
Usage Rank by Task
| Task | Anthropic: Claude Sonnet 4.6 (batch) | DeepSeek: DeepSeek V4 Flash 0731 |
|---|---|---|
| Overall | #18 | #1 |
| Memory Extraction | — | #6 |
| Multi-step Planning | — | #2 |
| Tool Dispatch | — | #2 |
| Web Search | — | #4 |
| Agent Workflows | — | #5 |
| Classification & Tagging | — | #9 |
| Debugging | — | #3 |
| DevOps Config | — | #2 |
| File Read/Write | — | #3 |
| Frontend UI | — | #2 |
| Code Implementation | — | #3 |
| Repo Analysis | — | #3 |
| Code Review & Security | — | #3 |
| Shell Execution | — | #6 |
About Anthropic: Claude Sonnet 4.6 (batch) and DeepSeek: DeepSeek V4 Flash 0731
Anthropic: Claude Sonnet 4.6 (batch)
Built by anthropic · released Feb 2026 · 1M-token context
Sonnet 4.6 is Anthropic's most capable Sonnet-class model yet, with frontier performance across coding, agents, and professional work. It excels at iterative development, complex codebase navigation, end-to-end project management with...
DeepSeek: DeepSeek V4 Flash 0731
Built by deepseek · released Jul 2026 · 1M-token context
DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total. This re-post-trained revision is suited for coding, reasoning, and agent workflows....
Related comparisons
- Anthropic: Claude Sonnet 4.6 (batch) vs Tencent: Hy3
- Anthropic: Claude Sonnet 4.6 (batch) vs OpenAI: GPT-5.6 Luna (batch)
- Anthropic: Claude Sonnet 4.6 (batch) vs DeepSeek: DeepSeek V4 Flash 0423
- DeepSeek: DeepSeek V4 Flash 0731 vs Tencent: Hy3
- DeepSeek: DeepSeek V4 Flash 0731 vs OpenAI: GPT-5.6 Luna (batch)
- DeepSeek: DeepSeek V4 Flash 0731 vs DeepSeek: DeepSeek V4 Flash 0423
Get notified when Anthropic: Claude Sonnet 4.6 (batch) or DeepSeek: DeepSeek V4 Flash 0731 moves
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FAQ
Which is better, Anthropic: Claude Sonnet 4.6 (batch) or DeepSeek: DeepSeek V4 Flash 0731?
Based on weekly OpenRouter usage tracked by AI Tier List, DeepSeek: DeepSeek V4 Flash 0731 ranks #1 overall — ahead of Anthropic: Claude Sonnet 4.6 (batch) at #18. DeepSeek: DeepSeek V4 Flash 0731 is cheaper on input tokens at $0.14/1M vs $1.50/1M for Anthropic: Claude Sonnet 4.6 (batch). DeepSeek: DeepSeek V4 Flash 0731 offers the larger context window at 1M tokens.
Which is cheaper, Anthropic: Claude Sonnet 4.6 (batch) or DeepSeek: DeepSeek V4 Flash 0731?
DeepSeek: DeepSeek V4 Flash 0731 is cheaper at $0.14 per 1M input tokens. Output pricing: Anthropic: Claude Sonnet 4.6 (batch) $7.50, DeepSeek: DeepSeek V4 Flash 0731 $0.28.
Which is better for coding, Anthropic: Claude Sonnet 4.6 (batch) or DeepSeek: DeepSeek V4 Flash 0731?
DeepSeek: DeepSeek V4 Flash 0731. Artificial Analysis coding scores: Anthropic: Claude Sonnet 4.6 (batch) 63.0, DeepSeek: DeepSeek V4 Flash 0731 69.1. Best coding-task usage rank this week: Anthropic: Claude Sonnet 4.6 (batch) —, DeepSeek: DeepSeek V4 Flash 0731 #2.
Is DeepSeek: DeepSeek V4 Flash 0731 still ahead of Anthropic: Claude Sonnet 4.6 (batch) right now?
Yes. For the week of 2026-08-10, DeepSeek: DeepSeek V4 Flash 0731 ranks #1 overall on OpenRouter usage against #18 for Anthropic: Claude Sonnet 4.6 (batch). Ranks refresh weekly, and the verdict on this page flips if they cross.
Usage ranks are weekly data aggregated by OpenRouter. Prices are USD per 1M tokens.