DeepSeek · 2026-09-10
DeepSeek V4.1 Flash pricing
DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal Encoder-Decoder (CED) architecture.
Prices from OpenRouter’s models API, updated October 29, 2026
What DeepSeek V4.1 Flash costs a month
| Workload | Standard | Batch API |
|---|---|---|
| Support chatbot: 1,000 chats a day, 1,500 tokens in, 400 out | $8.03 | $4.05 |
| Daily summaries: 10,000 a day, 3,000 tokens in, 300 out | $85.50 | $58.50 |
| Coding agent: 400 calls a day, 60,000 tokens in (80% cached), 2,000 out | $21.94 | $14.26 |
30 days. Cached input billed at the cache-read price. Use your own numbers.
Cheaper models with a similar context window
| Model | Provider | Input /1M | Output /1M | Cache read /1M | Context | Chatbot, per month* |
|---|---|---|---|---|---|---|
| GLM 5.3 Flash | Z.ai | $0.046 | $0.074 | $0.03 | 1.05M | $2.95 |
| Qwen3.7 Flash | Alibaba Qwen | $0.03 | $0.13 | $0.006 | 1M | $2.91 |
| Ling 3.0 Flash VL | inclusionai | $0.06 | $0.18 | $0.012 | 131K | $4.86 |
| Ternary Bonsai 2 9B | prism-ml | $0.08 | $0.13 | $0.04 | 262K | $5.16 |
| Qwen3.5-Flash | Alibaba Qwen | $0.065 | $0.26 | – | 1M | $6.04 |
* Support chatbot: 1,000 chats a day, 1,500 tokens in, 400 out, 30 days, no caching. Prices in US dollars per 1M tokens.
Cheaper isn’t automatically as good. Glow’s GlowBench scores models on your kind of task before suggesting a swap.
Other DeepSeek models
| Model | Input /1M | Output /1M | Cache read /1M | Context | Chatbot, per month* |
|---|---|---|---|---|---|
| DeepSeek V4.1 Flash 1017 | $0.30 | $1.20 | $0.006 | 1.05M | $27.90 |
| DeepSeek V4 Flash Vision Exp | $0.216 | $0.647 | $0.0069 | 1.05M | $17.46 |
| DeepSeek V4 Pro 0813 | $1.32 | $3.96 | $0.044 | 1.05M | $107 |
| DeepSeek V4 Flash 0731 | $0.119 | $0.238 | $0.024 | 1.05M | $8.21 |
| DeepSeek V4 Flash 0423 | $0.091 | $0.182 | $0.018 | 1.05M | $6.28 |
| DeepSeek V4 Pro 0423 | $0.955 | $1.91 | $0.08 | 1.05M | $65.91 |
* Support chatbot: 1,000 chats a day, 1,500 tokens in, 400 out, 30 days, no caching. Prices in US dollars per 1M tokens.
Related
DeepSeek V4.1 Flash: questions
How much does DeepSeek V4.1 Flash cost?
$0.045 per 1M input tokens and $0.50 per 1M output tokens, with cached input at $0.006, or $0.05 / $0.15 through the batch API. A 1,000-token prompt with a 500-token answer costs about $0.0003.
What is DeepSeek V4.1 Flash’s context window?
1,048,576 tokens, with up to 943,718 output tokens per response.
Is there a cheaper alternative to DeepSeek V4.1 Flash?
GLM 5.3 Flash costs $0.046 in and $0.074 out per 1M tokens with a similar context window. Whether it matches DeepSeek V4.1 Flash’s quality depends on the task: test it on your own prompts (Glow’s GlowBench does this per task).
Know what each model really costs you.
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