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  1. Models
  2. Text
  3. DeepSeek

DeepSeek V4.1 Flash 1017 Thinking

The October 17, 2026 snapshot of DeepSeek V4.1 Flash supports text and image input, tool calling, and optional reasoning with low, high, and max effort. It has a shared 1,048,576-token context window and supports up to 393,216 output tokens within the remaining context. Released under the MIT license.

  • Reasoning
  • Vision
  • Tool Calling
  • Structured Output

Added Oct 17, 2026

Model weights

Pricing

Auto routing · per 1M tokens
Input
$0.10
Output
$0.60
Cache read
$0.0042
Compare provider prices

Specifications

Context window
1M
Max output
393.2K
Avg output (7d)
962 tokens
Longer than 71% of models

Benchmarks

No public benchmark scores for this model yet.

Providers

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DeepSeek V4.1 Flash 1017 Uncensored

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DeepSeek V4.1 Flash 1017 Uncensored Thinking

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DeepSeek V4.1 Flash 1017

deepseek/deepseek-v4.1-flash-1017

The October 17, 2026 snapshot of DeepSeek V4.1 Flash supports text and image input, tool calling, and optional reasoning with low, high, and max effort. It has a shared 1,048,576-token context window and supports up to 393,216 output tokens within the remaining context. Released under the MIT license.

DeepSeek V4.1 Flash 0910 Uncensored

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Uncensored DeepSeek V4.1 Flash with text and image input, optional reasoning, and tool calling. The date label is retained for compatibility; the served checkpoint can vary with availability.

DeepSeek V4.1 Flash 0910 Uncensored Thinking

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Uncensored DeepSeek V4.1 Flash with text and image input, optional reasoning, and tool calling. The date label is retained for compatibility; the served checkpoint can vary with availability.

DeepSeek V4 Flash 0423

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The original 0423 checkpoint of DeepSeek V4 Flash, with a 1M-token context window, text input, tool calling, structured output, and optional reasoning.