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LLM Gateway

Seed 1.6 (250615) API

LLM Gateway
About

Build advanced reasoning agents with Seed 1.6 (250615), a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.25/1M input and $2.00/1M output tokens, native tool calling support, open weights architecture. Access Seed 1.6 (250615) via the LLM Gateway API with up to 8K output tokens.

Capabilities

Input Modalities

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Output Modalities

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Reasoning
Yes
Structured Output
Yes
Tool Use
Yes
WeightsOpen
Temperature
Adjustable
Attachment
Supported
Limits
Context Window
256K

Tokens

Input Limit
256K

Tokens

Max Output
8K

Tokens

Pricing

Standard (per 1M tokens)

Input
$0.25
Output
$2.00

Caching (per 1M tokens)

Read
$0.05
Frequently Asked Questions

Seed 1.6 (250615) by LLM Gateway costs $0.25 per 1M input tokens and $2.00 per 1M output tokens. Cached reads cost $0.05 per 1M tokens.

Model Details
ID
seed-1-6-250615
Provider
LLM Gateway
Family
seed
Release Date
Jun 25, 2025
Knowledge Cutoff
N/A
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
LLMGATEWAY_API_KEY
API Base URL
https://api.llmgateway.io/v1
Documentation