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DeepSeek · 2026-10-17

DeepSeek V4.1 Flash 1017 pricing

DeepSeek V4.1 Flash 1017 is the October 17, 2026 snapshot of DeepSeek V4.1 Flash, served by DeepSeek under the `deepseek-flash` API model name.

Prices from OpenRouter’s models API, updated October 29, 2026

Input$0.30per 1M tokens
Output$1.20per 1M tokens
Cached input$0.00698% off input
Context1.05Mvision · tools · reasoning

Price change on 2026-10-29: input $0.15 → $0.30, output $0.60 → $1.20 per 1M tokens.

What DeepSeek V4.1 Flash 1017 costs a month

WorkloadStandard
Support chatbot: 1,000 chats a day, 1,500 tokens in, 400 out$27.90
Daily summaries: 10,000 a day, 3,000 tokens in, 300 out$378
Coding agent: 400 calls a day, 60,000 tokens in (80% cached), 2,000 out$75.46

30 days. Cached input billed at the cache-read price. Use your own numbers.

Cheaper models with a similar context window

ModelProviderInput /1MOutput /1MCache read /1MContextChatbot, per month*
GLM 5.3 FlashZ.ai$0.046$0.074$0.031.05M$2.95
Qwen3.7 FlashAlibaba Qwen$0.03$0.13$0.0061M$2.91
Ling 3.0 Flash VLinclusionai$0.06$0.18$0.012131K$4.86
Ternary Bonsai 2 9Bprism-ml$0.08$0.13$0.04262K$5.16
Qwen3.5-FlashAlibaba 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

ModelInput /1MOutput /1MCache read /1MContextChatbot, per month*
DeepSeek V4.1 Flash$0.045$0.50$0.0061.05M$8.03
DeepSeek V4 Flash Vision Exp$0.216$0.647$0.00691.05M$17.46
DeepSeek V4 Pro 0813$1.32$3.96$0.0441.05M$107
DeepSeek V4 Flash 0731$0.119$0.238$0.0241.05M$8.21
DeepSeek V4 Flash 0423$0.091$0.182$0.0181.05M$6.28
DeepSeek V4 Pro 0423$0.955$1.91$0.081.05M$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 1017: questions

How much does DeepSeek V4.1 Flash 1017 cost?

$0.30 per 1M input tokens and $1.20 per 1M output tokens, with cached input at $0.006. A 1,000-token prompt with a 500-token answer costs about $0.0009.

What is DeepSeek V4.1 Flash 1017’s context window?

1,048,576 tokens, with up to 393,216 output tokens per response.

Is there a cheaper alternative to DeepSeek V4.1 Flash 1017?

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 1017’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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