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DeepSeek V4.1 Flash: price, performance and context

Open DeepSeek V4.1 Flash by DeepSeek costs $0.30 per 1M input and $1.20 per 1M output tokens, handles up to 1M tokens in one request (≈ 3,100 pages of text) and scores 39.5 points on the AgentKernel performance index, rank 27 of 212.

Privacy: zero data retention with 23 providers, not in the EU. Availability over the last 24 h: 100%.

Updated Oct 09, 2026, 16:46 UTC · deepseek/deepseek-v4.1-flash

Open in the interactive comparison

Key facts

Licence
Open weights: free to download and self-host
Input / 1M tokens
$0.30
Output / 1M tokens
$1.20
Context window
1M tokens
Max. output
943.7K tokens
Performance index
39.5 points · rank 27 of 212
Coding index
n/a
Agentic index
n/a
Cost at your usage
$0.60 / month
Knowledge cutoff
n/a
In the catalog since
Sep 10, 2026
Capabilities
Reasoning, Vision, Tool Calling

What do you get for $10.00?

Rules of thumb from the cost calculator, base rates without caching or taxes.

TaskCost per taskFor $10.00
Chat repliesA question with a short history, a detailed answer$0.00114,000
Email draftsBullet points in, a finished email out$0.00118,000
Document summariesRead 10 pages, write a one-page summary$0.0026,300
Code reviewsReview and comment on 500 lines of code$0.0033,500
Book analysesAnalyse a 300-page book in one go$0.032310

Cheaper with similar performance

ModelLicencePerformanceYour cost / month
Ling 3.1 FlashinclusionAIProprietary41.1$0.00
MiMo-V2.6-FlashXiaomiOpen37.9$0.21
Claude Haiku 5.5AnthropicProprietary43.4$0.225

Stronger models

ModelLicencePerformanceYour cost / month
Gemini 3.7 FlashGoogleProprietary39.6$1.688
Muse Spark 1.2MetaProprietary39.6$2.313
Qwen3.8 2.4T A95BQwenOpen39.9$3.50