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Is DeepSeek V4.1 Flash dumber today?
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| Day | Lobotomized | Dumb | Meh | Solid | Big brain |
|---|
DeepSeek V4.1 Flash discussions
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What DeepSeek V4.1 Flash costs
- Input
- $0.30 /1M tokens
- Output
- $1.20 /1M tokens
- Cached input
- $0.006 /1M tokens
- Context window
- 1M tokens
- Released
- September 10, 2026
Peak-hour price. Off-peak: $0.15 in / $0.60 out.
| 1,000 chat messages1,500 tokens in, 500 out each | $1.05 |
|---|---|
| Summarize a 50-page PDF30,000 tokens in, 1,000 out | $0.010 |
| One coding-agent task60,000 tokens in, 4,000 out, no caching | $0.023 |
Checked September 28, 2026. Official pricing · Status page
Latest from DeepSeek
- DeepSeek V4.1 Flash releasedSep 10 · Release
- DeepSeek V4 Pro generally availableAug 13 · Release
All news → · Prices re-checked September 28, 2026.
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DeepSeek V4.1 Flash: common questions
How much does DeepSeek V4.1 Flash cost?
Through the DeepSeek API, DeepSeek V4.1 Flash costs $0.30 per million input tokens and $1.20 per million output tokens, with cached input at $0.006. That works out to about $1.05 for 1,000 typical chat messages. Prices checked September 28, 2026. Peak-hour price. Off-peak: $0.15 in / $0.60 out.
Is DeepSeek V4.1 Flash dumber today?
The rating at the top of this page shows how people who used DeepSeek V4.1 Flash today rate it, from Lobotomized to Big brain, and the chart shows the last 30 days next to releases and official incidents. Ratings are opinions, not a benchmark. For outages, check the DeepSeek status page.
What is DeepSeek V4.1 Flash's context window?
DeepSeek V4.1 Flash accepts up to 1M tokens of input in one request.
When was DeepSeek V4.1 Flash released?
DeepSeek released DeepSeek V4.1 Flash on September 10, 2026. See every release and incident on the news page.
What are cheaper alternatives to DeepSeek V4.1 Flash?
Among budget models, GPT-6 Luna ($0.40 per 1,000 chats), GPT-5.6 Luna ($0.90 per 1,000 chats) cost less for a typical chat workload. Compare everything in the cost calculator.