$ diff qwen-3-8 deepseek-v4-flash
Qwen 3.8 Max vs DeepSeek V4-Flash
Values come from Qwen 3.8 Max and DeepSeek V4-Flash, where each is cited to its source. This page states no benchmark result and ranks neither model — it puts two published specifications next to each other. Where a lab has not published a figure, the row says so rather than guessing.
Alibaba QwenQwen 3.8 Max
- context
- 1M
- weights
- open
- $/M in
- $2
- $/M out
- $6
- context
- 1.0M
- weights
- open
- $/M in
- $0.14
- $/M out
- $0.28
What actually differs
- Context window
- DeepSeek V4-Flash takes 1.0M against 1M — modestly more room in a single request.
- Input price
- DeepSeek V4-Flash at $0.14/M against $2/M — 14.3× cheaper to feed. Standard rates: one of these labs also quotes a lower cached-input tier, which applies only when a prefix is reused — see the full spec below.
- Output price
- DeepSeek V4-Flash at $0.28/M against $6/M — 21.4× cheaper to generate. Output dominates the bill on most agentic workloads, where the model writes far more than it reads.
- Weights
- Both publish weights — Qwen 3.8 Max under Open-weight announced for the week of 2026-08-10; not yet shipped, DeepSeek V4-Flash under MIT (open-weight). Check the licences rather than assuming they permit the same commercial use.
- Recency
- Qwen 3.8 Max shipped 3 days after DeepSeek V4-Flash (2026-08-03 vs 2026-07-31).
Full spec
| Attribute | Qwen 3.8 Max | DeepSeek V4-Flash |
|---|---|---|
| Developer | Alibaba Qwen | DeepSeek |
| Released | 2026-08-03 | 2026-07-31 |
| Context window | 1 million tokens | 1,048,576 (1M) — OpenRouter catalogue `deepseek/deepseek-v4-flash`, read 2026-08-01; DeepSeek's own launch material did not state it |
| Pricing | $2 / M input · $6 / M output | $0.14/M input (cache miss) · $0.0028/M input (cache hit) · $0.28/M output — see Conflicting Reports |
| License | Open-weight announced for the week of 2026-08-10; not yet shipped | MIT (open-weight) |
| Availability | Alibaba Cloud Model Studio (global), QwenWork | DeepSeek API (Responses format, Codex-adapted), Hugging Face (`deepseek-ai/DeepSeek-V4-Flash-0731`) |