DeepSeekDeepSeek V3.2Open SourceArena #37Sep 29, 2025

DeepSeek: DeepSeek V3.2 Exp

DeepSeek-V3.2-Exp is an experimental large language model released by DeepSeek as an intermediate step between V3.1 and future architectures. It introduces DeepSeek Sparse Attention (DSA), a fine-grained sparse attention mechanism designed to improve training and inference efficiency in long-context scenarios while maintaining output quality. Users can control the reasoning behaviour with the `reasoning` `enabled` boolean. Learn more in our docs The model was trained under conditions aligned with V3.1-Terminus to enable direct comparison. Benchmarking shows performance roughly on par with V3.1 across reasoning, coding, and agentic tool-use tasks, with minor tradeoffs and gains depending on the domain. This release focuses on validating architectural optimizations for extended context lengths rather than advancing raw task accuracy, making it primarily a research-oriented model for exploring efficient transformer designs.

Context Window
164K
tokens
Max Output
66K
tokens
Released
Sep 29, 2025
Arena Rank
#37
of 305 models
Output Speed
168
tokens/sec
Time to First Token
720ms
TTFT

Capabilities

👁Vision
🧠Reasoning
🔧Tool Calling
Prompt Caching
🖥Computer Use
🎨Image Generation

Supported Parameters

Frequency Penalty
Reduce repetition
Include Reasoning
Show reasoning tokens
Max Tokens
Output length limit
Presence Penalty
Encourage new topics
Reasoning
Extended thinking
Repetition Penalty
Penalize repeated tokens
Response Format
JSON mode / structured output
Seed
Deterministic outputs
Stop Sequences
Custom stop tokens
structured_outputs
Temperature
Controls randomness
Tool Choice
Control tool usage
Tool Calling
Function calling support
Top K
Top-K sampling
Top P
Nucleus sampling

Pricing Comparison

RouterInput / 1MOutput / 1MCached Input / 1M
OpenRouter$0.27$0.41
Martian$0.27$0.41

Benchmarks

Artificial Analysis
Intelligence IndexArtificial Analysis
59/100
Coding IndexArtificial Analysis
54/100
Math IndexArtificial Analysis
68/100
MMLU-PROArtificial Analysis
0.758/1
GPQA DiamondArtificial Analysis
0.598/1
MATH-500Artificial Analysis
0.848/1
AIME 2024Artificial Analysis
0.28/1
LiveCodeBenchArtificial Analysis
0.528/1
SciCodeArtificial Analysis
0.255/1

Model IDs

OpenRouterdeepseek/deepseek-v3.2-exp

Tags

reasoningtool-calling
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