DeepSeek V4.1 Flash
DeepSeek · Multimodal · Released Sep 2026
A sparse mixture-of-experts model from DeepSeek with 13 billion active parameters out of 284 billion total and a 1-million-token context window, designed as the cost-efficient tier of the V4.1 family.
- Strengths
- Delivers higher performance and speed than V4 Pro while maintaining lower inference costs through its sparse architecture.
- Best for
- Production workloads where throughput and latency matter as much as capability, and where the reduced parameter activation yields meaningful cost savings.
- Limitations
- As the smaller, faster model in the V4.1 lineup, it trades some reasoning depth and capability ceiling for efficiency; tasks requiring frontier-class performance may benefit from V4 Pro instead.
Input / 1M
$0.14
Output / 1M
$0.42
Cached input / 1M
$0.0042
Context window
1.05M
Price history
Input (solid)Output (dashed)
Price change
- 30d
- in increased 300.0% out increased 44.8%
- 90d
- in decreased 6.7% out decreased 30.0%
- 1y
- in decreased 6.7% out decreased 30.0%
- Since launch
- in decreased 6.7% out decreased 30.0%
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 27 Oct 2026 | $0.14 | $0.42 | $0.0042 | Imported from OpenRouter | openrouter.ai |
| 24 Oct 2026 | $0.02 | $1.00 | $0.015 | Imported from OpenRouter | openrouter.ai |
| 23 Oct 2026 | $0.3 | $1.20 | $0.006 | Imported from OpenRouter | openrouter.ai |
| 22 Oct 2026 | $0.3 | $1.20 | $0.006 | Imported from OpenRouter | openrouter.ai |
| 21 Oct 2026 | $0.0239 | $0.375 | $0.0003 | Imported from OpenRouter | openrouter.ai |
| 20 Oct 2026 | $0.0283 | $0.12 | $0.0006 | Imported from OpenRouter | openrouter.ai |
| 19 Oct 2026 | $0.032 | $0.08 | $0.0016 | Imported from OpenRouter | openrouter.ai |
| 18 Oct 2026 | $0.04 | $0.144 | $0.0016 | Imported from OpenRouter | openrouter.ai |
| 17 Oct 2026 | $0.15 | $0.6 | $0.003 | Imported from OpenRouter | openrouter.ai |
| 16 Oct 2026 | $0.036 | $0.6435 | $0.0054 | Imported from OpenRouter | openrouter.ai |
| 15 Oct 2026 | $0.0089 | $0.8 | $0.01 | Imported from OpenRouter | openrouter.ai |
| 14 Oct 2026 | $0.0158 | $0.891 | $0.0054 | Imported from OpenRouter | openrouter.ai |
| 13 Oct 2026 | $0.0441 | $0.63 | $0.0054 | Imported from OpenRouter | openrouter.ai |
| 12 Oct 2026 | $0.15 | $0.6 | $0.003 | Imported from OpenRouter | openrouter.ai |
| 8 Oct 2026 | $0.3 | $1.20 | $0.006 | Imported from OpenRouter | openrouter.ai |
| 7 Oct 2026 | $0.3 | $1.20 | $0.006 | Imported from OpenRouter | openrouter.ai |
| 6 Oct 2026 | $0.0195 | $1.20 | $0.015 | Imported from OpenRouter | openrouter.ai |
| 5 Oct 2026 | $0.3 | $1.20 | $0.006 | Imported from OpenRouter | openrouter.ai |
| 4 Oct 2026 | $0.003 | $2.40 | $0.003 | Imported from OpenRouter | openrouter.ai |
| 3 Oct 2026 | $0.3 | $1.20 | $0.006 | Imported from OpenRouter | openrouter.ai |
| 2 Oct 2026 | $0.02 | $0.6 | $0.02 | Imported from OpenRouter | openrouter.ai |
| 1 Oct 2026 | $0.03 | $0.5 | $0.01 | Imported from OpenRouter | openrouter.ai |
| 30 Sep 2026 | $0.0198 | $0.396 | $0.0029 | Imported from OpenRouter | openrouter.ai |
| 28 Sep 2026 | $0.3 | $1.20 | $0.006 | Imported from OpenRouter | openrouter.ai |
| 26 Sep 2026 | $0.035 | $0.29 | $0.001 | Imported from OpenRouter | openrouter.ai |
| 25 Sep 2026 | $0.15 | $0.6 | $0.003 | Imported from OpenRouter | openrouter.ai |
| 24 Sep 2026 | $0.15 | $0.6 | $0.003 | Imported from OpenRouter | openrouter.ai |
| 23 Sep 2026 | $0.1 | $0.5 | $0.01 | Imported from OpenRouter | openrouter.ai |
| 22 Sep 2026 | $0.15 | $0.6 | $0.003 | Imported from OpenRouter | openrouter.ai |
| 21 Sep 2026 | $0.15 | $0.6 | $0.003 | Imported from OpenRouter | openrouter.ai |
| 18 Sep 2026 | $0.15 | $0.6 | $0.003 | Imported from OpenRouter | openrouter.ai |
| 17 Sep 2026 | $0.15 | $0.6 | $0.003 | Imported from OpenRouter | openrouter.ai |
| 16 Sep 2026 | $0.15 | $0.6 | $0.003 | Imported from OpenRouter | openrouter.ai |
| 15 Sep 2026 | $0.15 | $0.6 | $0.003 | Imported from OpenRouter | openrouter.ai |
| 14 Sep 2026 | $0.15 | $0.6 | $0.003 | Imported from OpenRouter | openrouter.ai |
| 11 Sep 2026 | $0.15 | $0.6 | $0.003 | Imported from OpenRouter | openrouter.ai |
| 10 Sep 2026 | $0.15 | $0.6 | $0.003 | Imported from OpenRouter | openrouter.ai |