What is the context window of ERNIE 5.1 by NanoGPT?

ERNIE 5.1 by NanoGPT has a context window of 119K tokens. It supports up to 119K input tokens and can generate up to 64K output tokens.

What input and output types does ERNIE 5.1 support?

ERNIE 5.1 by NanoGPT accepts text as input and can generate text as output.

Is ERNIE 5.1 by NanoGPT open source?

No, ERNIE 5.1 by NanoGPT has closed weights. The model is only available through the NanoGPT API.

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ERNIE 5.1 API

NanoGPT

About

Process massive datasets with ERNIE 5.1, featuring an expansive 119K context window for long-document analysis. This model delivers cost-effective pricing at $0.75/1M input and $3.00/1M output tokens. Access ERNIE 5.1 via the NanoGPT API with up to 64K output tokens.

Capabilities

Input Modalities

text

Output Modalities

text

Reasoning

Structured Output

Tool Use

WeightsClosed

Temperature

Fixed

Attachment

Not Supported

Limits

Context Window

119K

Tokens

Input Limit

119K

Tokens

Max Output

64K

Tokens

Pricing

Standard (per 1M tokens)

Input

$0.75

Output

$3.00

Caching (per 1M tokens)

Read

$0.75

Frequently Asked Questions

ERNIE 5.1 by NanoGPT costs $0.75 per 1M input tokens and $3.00 per 1M output tokens. Cached reads cost $0.75 per 1M tokens.

Model Details

ernie-5.1

Provider

NanoGPT

Family

ernie

Release Date

May 10, 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