DeepSeek-V4-Flash-0731
DeepSeek-V4-Flash-0731 is an updated fast MoE checkpoint from DeepSeek released in July 2026, focused on agentic and terminal-based tasks. It demonstrates strong performance on agent benchmarks such as Terminal-Bench 2.1, CyberGym and Toolathlon. Weights and a technical report are publicly available.
Key Specifications
Parameters
304.0B
Context
1.0M
Release Date
July 31, 2026
Average Score
74.8%
Timeline
Key dates in the model's history
Announcement
July 31, 2026
Last Update
August 27, 2026
Technical Specifications
Parameters
304.0B
Training Tokens
-
Knowledge Cutoff
-
Family
-
Capabilities
MultimodalZeroEval
Pricing & Availability
Input (per 1M tokens)
$0.14
Output (per 1M tokens)
$0.28
Max Input Tokens
1.0M
Max Output Tokens
393.2K
Supported Features
Function CallingStructured OutputCode ExecutionWeb SearchBatch InferenceFine-tuning
Benchmark Results
Model performance metrics across various tests and benchmarks
Other Tests
Specialized benchmarks
Terminal-Bench 2.1
DeepSeek Harness minimal mode; max reasoning effort; temperature 1.0; top_p 0.95 • Self-reported
CyberGym
DeepSeek Harness minimal mode; max reasoning effort; temperature 1.0; top_p 0.95 • Self-reported
Toolathlon
Verified split; DeepSeek Harness minimal mode; max reasoning effort; temperature 1.0; top_p 0.95 • Self-reported
DSBench-FullStack
Internal full-stack development test set; DeepSeek Harness minimal mode; max reasoning effort; temperature 1.0; top_p 0.95 • Self-reported
License & Metadata
License
mit
Announcement Date
July 31, 2026
Last Updated
August 27, 2026
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