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  1. Models
  2. Text
  3. DeepSeek

DeepSeek V4 Pro (April preview, Thinking)

DeepSeek V4 Pro April preview (2026-04-23) with chain-of-thought enabled: a large-scale Mixture-of-Experts model with a 1M-token context window. Plain DeepSeek V4 Pro now means V4 Pro 0813.

  • Reasoning
  • Tool Calling
  • Structured Output

Added Apr 24, 2026

Model weights

Pricing

Auto routing · per 1M tokens
Input
$0.951
Output
$1.80
Cache read
$0.0796
Compare provider prices

Specifications

Context window
1M
Max output
384K
Parameters
1.6T / 49B
Total / active

Benchmarks

Sourced from Vectara.

Hallucination Rate

8.6%

Hallucination Rate: 8.6
Better than 59% of models compared

Factual Consistency

91.4%

Factual Consistency: 91.4
Better than 59% of models compared

Answer Rate

97.2%

Answer Rate: 97.2
Better than 19% of models compared

Avg Summary Length

Average generated summary length

153.8

Last updated 2026-10-22 · Matched as deepseek-ai/DeepSeek-V4-Pro

Vectara Leaderboard

Providers

Auto routing is available for this model. Explicit provider selection is not available.

Auto
Auto
Recommended
$0.951$1.80$0.0796N/AN/A
Batch API
ProviderInputOutputCached input
Auto
Autodeepseek/deepseek-v4-pro-20260423:thinking
$0.951/M$1.80/M$0.0796/M

Batch rows for this model use normal routing and cost the same as standard API requests. Set provider in a row to choose a provider.

Reliability

Related text models

Compare DeepSeek V4 Pro (April preview, Thinking) with similar models from the same provider or model family.

DeepSeek V4 Pro (April preview)

deepseek/deepseek-v4-pro-20260423

DeepSeek V4 Pro April preview (2026-04-23), the first V4 Pro checkpoint: a large-scale Mixture-of-Experts model with a 1M-token context window for reasoning, coding, long-horizon agent workflows, knowledge, math and software engineering. Plain DeepSeek V4 Pro now means V4 Pro 0813.

DeepSeek V4 Pro 0813

deepseek/deepseek-v4-pro-0813

DeepSeek V4 Pro 0813 is the general-availability release of DeepSeek V4 Pro, built for coding, tool use, cybersecurity, automation, and long-horizon agent workflows. DeepSeek reports strong gains over the preview and scores above Opus 4.8 on Terminal Bench 2.1, Cybergym, DeepSWE, and AutomationBench. It supports a 1M-token context window.

DeepSeek V4 Pro 0813 Thinking

deepseek/deepseek-v4-pro-0813:thinking

DeepSeek V4 Pro 0813 Thinking enables reasoning by default on the general-availability release of DeepSeek V4 Pro, built for coding, tool use, cybersecurity, automation, and long-horizon agent workflows. DeepSeek reports strong gains over the preview and scores above Opus 4.8 on Terminal Bench 2.1, Cybergym, DeepSWE, and AutomationBench. It supports a 1M-token context window.

DeepSeek V4.1 Flash 0910 Uncensored

deepseek/deepseek-v4.1-flash-0910-uncensored

Uncensored DeepSeek V4.1 Flash with text and image input, optional reasoning, and tool calling. The date label is retained for compatibility. Served only by its own checkpoint; it may be unavailable while that host is down.

DeepSeek V4.1 Flash 0910 Uncensored Thinking

deepseek/deepseek-v4.1-flash-0910-uncensored:thinking

Uncensored DeepSeek V4.1 Flash with text and image input, optional reasoning, and tool calling. The date label is retained for compatibility. Served only by its own checkpoint; it may be unavailable while that host is down.

DeepSeek V4.1 Flash 1017 Uncensored

deepseek/deepseek-v4.1-flash-1017-uncensored

Uncensored DeepSeek V4.1 Flash with text and image input, optional reasoning, and tool calling. The date label is retained for compatibility. Served only by its own checkpoint; it may be unavailable while that host is down.