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Kilo Gateway

Upstage: Solar Pro 3 API

Kilo Gateway
About

Build advanced reasoning agents with Upstage: Solar Pro 3, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.15/1M input and $0.60/1M output tokens, native tool calling support. Access Upstage: Solar Pro 3 via the Kilo Gateway API with up to 33K output tokens.

Capabilities

Input Modalities

text

Output Modalities

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

Tokens

Input Limit
128K

Tokens

Max Output
33K

Tokens

Pricing

Standard (per 1M tokens)

Input
$0.15
Output
$0.60
Frequently Asked Questions

Upstage: Solar Pro 3 by Kilo Gateway costs $0.15 per 1M input tokens and $0.60 per 1M output tokens.

Model Details
ID
upstage/solar-pro-3
Provider
Kilo Gateway
Family
Release Date
Jan 27, 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