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DeepSeek V3.1

Pricing & Specs API
Free REST API for prices, specs and benchmarks
DeepSeek V3.1 is DeepSeek's language model with a 164K context window and up to 33K output tokens, starting at $0.25 / 1M input and $0.95 / 1M output. DeepSeek's 671B-parameter hybrid reasoning MoE LLM that supports both thinking and non-thinking modes via prompt templates, extending the V3 base.
Specifications
Canonical IDdeepseek-chat-3-1
TypeLanguage
StatusActive
CreatorDeepSeekDeepSeek
Providers
Context Window164K tokens
Max Output33K tokens
Input ModalitiesText
Output ModalitiesText
Reasoning Effortsdefault
Parameters685B
HuggingFace Likes819
HuggingFace Downloads (30d)149,478
HuggingFace Downloads (all-time)1,703,662
Release Date · 11 months ago
Knowledge Cutoff · 1 year ago

Capabilities

Input1/5
Text✓
Image·
Audio·
Video·
PDF·
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities6/13
Reasoning✓
Adaptive Reasoning·
Function Calling✓
Parallel Function Calling·
Structured Outputs✓
Native JSON Schema✓
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching✓
Assistant Prefill✓

Pricing by Provider

US Dollar ($)
Per 1M tokens
ProviderStandard
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
OpenRouter logo
OpenRouter
deepseek/deepseek-chat-v3.1
$0.25$0.95$0.13

Cost Calculator

US Dollar ($)
Preset:

Cheapest Instances to Run It

Cloud GPU instances that can host DeepSeek V3.1, ranked by cheapest on-demand price. The model needs about 1643 GB of GPU memory at FP16 precision (estimated from its parameter count), so treat the fit as guidance rather than a guarantee.

All clouds
FP16 (full precision)
US Dollar ($)
Instance
Cloud
GPU
VRAM
Price
Cheapest region
p6-b300.48xlargeAWS8× B3002149 GB$142.42/hrus-east-1

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
DeepSeek V3.1164K$0.250$0.950Current
DeepSeek V3 0324164K$0.270$1.12Available
Kimi K2 Instruct—262K$0.500$2.00Available

Model IDs

deepseek-chat-3-1
deepseek/deepseek-chat-v3.1
openrouter/deepseek/deepseek-chat-v3.1