Guanaco (65B) API

Guanaco-65B: Powerful open-source chatbot model, competitive with ChatGPT 3.5 Turbo.

Modalities
TextText
Model type
Chat
Status
Deprecated

Guanaco (65B) overview

Guanaco (65B) by University of Washington NLP

Access Guanaco-65B API. Guanaco 65B is an open-source chatbot model that rivals ChatGPT 3.5 Turbo, developed using efficient 4-bit QLoRA finetuning.

Guanaco (65B) specs

Developer
University of Washington NLP
Input
Text
Output
Text
API
OpenAI-compatible, base URL https://api.aimlapi.com/v1

Basic Information

  • Developer/Creator: Tim Dettmers

Overview

The Guanaco-65B is a 65 billion parameter open-source chatbot model developed by Tim Dettmers. It is created by applying 4-bit QLoRA finetuning to the LLaMA base model using the OASST1 dataset. The model demonstrates the potential of QLoRA technology, achieving performance comparable to top commercial chatbots like ChatGPT and BARD.

Key Features

  • Competitive performance with ChatGPT and BARD on Vicuna and OpenAssistant benchmarks
  • Available open-source for affordable and local experimentation
  • Replicable and efficient 4-bit QLoRA training procedure
  • Lightweight adapter weights that can be used with LLaMA base models

Intended Use

The Guanaco-65B is designed for use as a powerful open-source chatbot model, enabling developers and researchers to experiment with and deploy high-performance conversational AI systems. It can be used for tasks such as:

  • Task-oriented dialogue systems

Language Support

The Guanaco-65B is a multilingual model, but the OASST1 dataset it was trained on is heavily weighted towards high-resource languages. The model likely performs best on English and other high-resource languages.

Architecture

The Guanaco-65B uses a LoRA (Low-Rank Adaptation) architecture, with adapter weights added to all layers of the LLaMA base model. This allows for efficient finetuning while preserving the base model's capabilities.

Training Data

The model was trained on the OASST1 dataset, which is multilingual but skewed towards high-resource languages. The exact size and diversity of the dataset is not publicly reported.

Knowledge Cutoff

The knowledge cutoff date for the Guanaco-65B model is not publicly specified. It likely reflects the date of the OASST1 dataset used for finetuning.

Performance Metrics

According to the model's documentation, the Guanaco-65B achieves performance at 99.3 percent of ChatGPT-3.5 Turbo on the Vicuna benchmarks, as evaluated by both human raters and GPT-4.

Ethical Guidelines

No specific ethical guidelines are provided for the Guanaco-65B model. As an open-source model, it is up to developers to use it responsibly and consider potential misuse.

License Type

The Guanaco adapter weights are licensed under Apache 2.0. However, using the model requires access to the LLaMA base model weights, which have more restrictive licensing terms.In summary, the Guanaco-65B is a powerful open-source chatbot model that rivals commercial offerings like ChatGPT, while demonstrating the potential of efficient 4-bit QLoRA finetuning. It provides an affordable and replicable path to high-performance conversational AI.

Use cases

  • building high-performance multilingual chatbots for customer support, education, and research
  • open research and experimentation in state-of-the-art instruction-following LLMs
  • generating in-depth multi-turn conversations, roleplaying, and creative storytelling
  • real-time AI-assisted writing, summarization, and code generation
  • deployment on powerful hardware for scalable AI services in industry and academia
  • machine translation, language interpretation, and multilingual NLP tasks
  • adapting and fine-tuning for specialized domains such as healthcare (e.g., MedGuanaco variant)

Capabilities

  • Function calling
  • Streaming
  • Structured outputs

Guanaco (65B) API pricing

Guanaco (65B) pricing in US dollars
UsagePriceUnit
Input$0.9451M tokens
Output$0.9451M tokens

Guanaco (65B) is deprecated on AI/ML API. The rates apply to existing integrations; the models below are current alternatives.

Prices from the AI/ML API price list, checked on Nov 4, 2026.

Guanaco (65B) vs other models: token prices

AI/ML API input and output rates for 5 models, per million tokens.

AI/ML API model prices in USD per million tokens
ModelInputOutput
Guanaco (65B)$0.945$0.945
MiMo-V2.5 Pro$0.4602$0.9205
Venice Uncensored$0.2116$0.9522
Codestral 2508$0.3174$0.9522
GLM 4.6V$0.3174$0.9522

Related articles

All posts

Guanaco (65B) FAQ

Does Guanaco (65B) support streaming?

Yes, Guanaco (65B) can stream responses as they are generated.

Does Guanaco (65B) support tool calling and structured outputs?

Yes, Guanaco (65B) supports both function calling and structured outputs.

Who created Guanaco (65B)?

Guanaco (65B) was built by University of Washington NLP.

Start building with Guanaco (65B)