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Merge Gateway

DeepSeek V3.1 API

Merge Gateway
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 $0.50/1M input and $1.50/1M output tokens, native tool calling support, open weights architecture. Access DeepSeek V3.1 via the Merge Gateway API with up to 41K output tokens.

Capabilities

Input Modalities

text

Output Modalities

text
Reasoning
Yes
Structured Output
Yes
Tool Use
Yes
WeightsOpen
Temperature
Adjustable
Attachment
Not Supported
Limits
Context Window
164K

Tokens

Input Limit
164K

Tokens

Max Output
41K

Tokens

Pricing

Standard (per 1M tokens)

Input
$0.50
Output
$1.50
Frequently Asked Questions

DeepSeek V3.1 by Merge Gateway costs $0.50 per 1M input tokens and $1.50 per 1M output tokens.

Model Details
ID
deepseek/deepseek-v3.1
Provider
Merge Gateway
Family
deepseek
Release Date
Aug 21, 2025
Knowledge Cutoff
N/A
API Integration
NPM Package
merge-gateway-ai-sdk-provider
Environment Variables
MERGE_GATEWAY_API_KEY
API Base URL
https://api-gateway.merge.dev/v1/ai-sdk
Documentation