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Together AI

DeepSeek V3.1 API

Together AI
About

Build advanced reasoning agents with DeepSeek V3.1, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.60/1M input and $1.70/1M output tokens, native tool calling support, open weights architecture. Access DeepSeek V3.1 via the Together AI API with up to 131K output tokens.

Capabilities

Input Modalities

text

Output Modalities

text
Reasoning
Yes
Structured Output
No
Tool Use
Yes
WeightsOpen
Temperature
Adjustable
Attachment
Not Supported
Limits
Context Window
131K

Tokens

Input Limit
131K

Tokens

Max Output
131K

Tokens

Pricing

Standard (per 1M tokens)

Input
$0.60
Output
$1.70
Frequently Asked Questions

DeepSeek V3.1 by Together AI costs $0.60 per 1M input tokens and $1.70 per 1M output tokens.

Model Details
ID
deepseek-ai/DeepSeek-V3-1
Provider
Together AI
Family
deepseek
Release Date
Aug 21, 2025
Knowledge Cutoff
Aug 1, 2025
API Integration
NPM Package
@ai-sdk/togetherai
Environment Variables
TOGETHER_API_KEY
Documentation