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NanoGPT

GLM 5.3 Preview API

NanoGPT
About

Build advanced reasoning agents with GLM 5.3 Preview, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $1.40/1M input and $4.40/1M output tokens, native tool calling support. Access GLM 5.3 Preview via the NanoGPT API with up to 131K output tokens.

Capabilities

Input Modalities

text

Output Modalities

text
Reasoning
Yes
Structured Output
Yes
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Not Supported
Limits
Context Window
1.0M

Tokens

Input Limit
1.0M

Tokens

Max Output
131K

Tokens

Pricing

Standard (per 1M tokens)

Input
$1.40
Output
$4.40

Caching (per 1M tokens)

Read
$0.26
Frequently Asked Questions

GLM 5.3 Preview by NanoGPT costs $1.40 per 1M input tokens and $4.40 per 1M output tokens. Cached reads cost $0.26 per 1M tokens.

Model Details
ID
zai-org/glm-5.3
Provider
NanoGPT
Family
glm
Release Date
Aug 14, 2026
Knowledge Cutoff
N/A
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
NANO_GPT_API_KEY
API Base URL
https://nano-gpt.com/api/v1
Documentation