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Kilo Gateway

Body Builder (beta) API

Kilo Gateway
About

Process massive datasets with Body Builder (beta), featuring an expansive 128K context window for long-document analysis. This model delivers available completely free of charge. Access Body Builder (beta) via the Kilo Gateway API with up to 33K output tokens.

Capabilities

Input Modalities

text

Output Modalities

text
Reasoning
No
Structured Output
No
Tool Use
No
WeightsClosed
Temperature
Fixed
Attachment
Not Supported
Limits
Context Window
128K

Tokens

Input Limit
128K

Tokens

Max Output
33K

Tokens

Pricing

Standard (per 1M tokens)

Input
Free
Output
Free
Frequently Asked Questions

Body Builder (beta) by Kilo Gateway costs Free per 1M input tokens and Free per 1M output tokens.

Model Details
ID
openrouter/bodybuilder
Provider
Kilo Gateway
Family
Release Date
Mar 15, 2026
Knowledge Cutoff
N/A
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
KILO_API_KEY
API Base URL
https://api.kilo.ai/api/gateway
Documentation