glm-5.3-flash Free API on NVIDIA NIM

Free API Verified

Available from NVIDIA NIM

★★★★★★★★★★ 3.5 Benchmark-backed score

z-ai/glm-5.3-flash — free model from NVIDIA NIM (z-ai).

Free APIOpenAI compatibleReasoningTool callingTextImageVideo

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API Details

Copy-ready connection details

Use these values in your client or SDK.

Base URL

https://integrate.api.nvidia.com/v1

Model ID

z-ai/glm-5.3-flash

API format OpenAI Chat Completions

Technical Details

glm-5.3-flash specifications

Provider catalog

Context window 1.3M

Max output 131K

Status Online

Family glm

Released Aug 26, 2026

Last updated Sep 12, 2026

Free listing since Aug 26, 2026

Input text, image, video, pdf, reasoning

Output text

Capabilities reasoning, tool calling

Open weights Yes

AI Recommendation

Should you use glm-5.3-flash?

glm-5.3-flash is listed for chat workloads and supports a 1.3M context window.

Use it when NVIDIA NIM's free tier is enough for evaluation, demos, or light production traffic.

Best for

Chat

Strengths & Weaknesses

Strengths

Long context window
Reasoning mode listed
Tool calling support
Works with OpenAI-style SDKs

Watch outs

Free-tier rate limits apply

Benchmark Overview

Benchmark signals for glm-5.3-flash

Measured data

Intelligence General reasoning and instruction following

41.9/100

Coding Programming and code generation

71.5/100

Agentic Tool use and multi-step tasks

51.2/100

Speed Observed generation speed

95 tok/s

Context Maximum listed context window

1.3M

Pricing

glm-5.3-flash pricing per 1M tokens

Free tier listed

Input $0.15 per 1M tokens

Output $0.5 per 1M tokens

Access Available NVIDIA NIM

Rate limit Up to 40 RPM provider policy

Availability

glm-5.3-flash availability by provider

Current provider only

We only found this glm listing on NVIDIA NIM in the current catalog. Use the related models section for nearby alternatives.

Provider	Model listing	Access	Context	API	Limits
NVIDIA NIM	z-ai/glm-5.3-flash	Free tier	1.3M	OpenAI-style	Up to 40 RPM

View NVIDIA NIM setup guide →

Compare

glm-5.3-flash alternatives to consider

Open comparison

Model	Provider	Context	Access
01-ai/yi-large	NVIDIA NIM	131K	Free tier
adept/fuyu-8b	NVIDIA NIM	131K	Free tier
ai21labs/jamba-1.5-large-instruct	NVIDIA NIM	131K	Free tier
aisingapore/sea-lion-7b-instruct	NVIDIA NIM	131K	Free tier
bigcode/starcoder2-15b	NVIDIA NIM	131K	Free tier

Typical Use Cases

glm-5.3-flash use cases

Chat

glm-5.3-flash is tagged for chat in this catalog and works with OpenAI-compatible client libraries.

FAQ

glm-5.3-flash free API FAQ

Is glm-5.3-flash free to use?

glm-5.3-flash is listed with free API access on NVIDIA NIM, subject to the provider's quota and account policy.

What is the glm-5.3-flash model ID?

The model ID shown in this catalog is z-ai/glm-5.3-flash.

What are the glm-5.3-flash free tier rate limits on NVIDIA NIM?

The listed free tier limit is Up to 40 RPM. Limits can change per account tier, so confirm against the provider dashboard.

What context window does glm-5.3-flash support?

The listed context window is 1.3M tokens with up to 131K output tokens.

More about glm-5.3-flash