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NanoGPT

ERNIE 5.1 Thinking API

NanoGPT
About

Build advanced reasoning agents with ERNIE 5.1 Thinking, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.75/1M input and $3.00/1M output tokens. Access ERNIE 5.1 Thinking via the NanoGPT API with up to 64K output tokens.

Capabilities

Input Modalities

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Output Modalities

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Reasoning
Yes
Structured Output
No
Tool Use
No
WeightsClosed
Temperature
Fixed
Attachment
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 Thinking 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
ID
ernie-5.1:thinking
Provider
NanoGPT
Family
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