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NanoGPT

Solar Pro 4 API

NanoGPT
About

Process massive datasets with Solar Pro 4, featuring an expansive 524K context window for long-document analysis. This model delivers cost-effective pricing at $0.03/1M input and $0.12/1M output tokens, native tool calling support. Access Solar Pro 4 via the NanoGPT API with up to 131K output tokens.

Capabilities

Input Modalities

text

Output Modalities

text
Reasoning
No
Structured Output
Yes
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Not Supported
Limits
Context Window
524K

Tokens

Input Limit
524K

Tokens

Max Output
131K

Tokens

Pricing

Standard (per 1M tokens)

Input
$0.03
Output
$0.12

Caching (per 1M tokens)

Read
$0.0060
Frequently Asked Questions

Solar Pro 4 by NanoGPT costs $0.03 per 1M input tokens and $0.12 per 1M output tokens. Cached reads cost $0.0060 per 1M tokens.

Model Details
ID
upstage/solar-pro4
Provider
NanoGPT
Family
solar-pro
Release Date
Aug 6, 2026
Knowledge Cutoff
Feb 1, 2026
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
NANO_GPT_API_KEY
API Base URL
https://nano-gpt.com/api/v1
Documentation