What are the hardware requirements for Context 1?

Context 1 requires approximately 41.8 GB of VRAM and supports a context window of 128K tokens. Quantized variants may run on less VRAM; see the Quantized Models section on this page.

Who developed Context 1 and how large is it?

Context 1 is developed by chromadb, a model with 20b parameters. The model is published as open weights on Hugging Face and indexed on LLM Explorer with full benchmark history.

Where can I download or evaluate Context 1?

Context 1 is hosted on Hugging Face and linked from this page. LLM Explorer also lists quantized variants and similar alternatives if available.

Context 1 by chromadb — VRAM 41.8GB, 128K context

Name: Context 1
Author: chromadb

Context 1 is an open-source language model by chromadb. Features: 20b LLM, VRAM: 41.8GB, Context: 128K, License: apache-2.0, LLM Explorer Score: 0.3.

Base model:finetune:openai/gpt... Base model:openai/gpt-oss-20b Conversational Endpoints compatible Gpt oss Region:us Safetensors

Model Card on HF 🤗: https://huggingface.co/chromadb/context-1

Context 1 Parameters and Internals

LLM Name	Context 1
Repository 🤗	https://huggingface.co/chromadb/context-1
Base Model(s)	GPT Oss 20B openai/gpt-oss-20b
Model Size	20b
Required VRAM	41.8 GB
Updated	2026-07-17
Maintainer	chromadb
Model Type	gpt_oss
Model Files	41.8 GB
Model Architecture	GptOssForCausalLM
License	apache-2.0
Context Length	131072
Model Max Length	131072
Transformers Version	5.3.0
Tokenizer Class	TokenizersBackend
Padding Token	<\|endoftext\|>
Vocabulary Size	201088

Rank the Context 1 capabilities

Have you tried this model? Rate its performance — this feedback helps the ML community find the right model for their needs.

Instruction Following and Task Automation
Factuality and Completeness of Knowledge
Censorship and Alignment
Data Analysis and Insight Generation
Text Generation
Text Summarization and Feature Extraction
Code Generation
Multi-Language Support and Translation

Quantized Models of the Context 1

Model	Likes	Downloads	VRAM
Context 1 MLX 4bit	1	30	11 GB

Best Alternatives to Context 1

Best Alternatives	Context / RAM	Downloads	Likes
GPT Oss 20B	128K / 13.8 GB	7983620	4849
OTel LLM 20B Reasoning	128K / 83.8 GB	1040	1
GPT Oss 20B	128K / 13.8 GB	16416	47
GPT Oss Safeguard 20B	128K / 13.8 GB	154333	239
Strawberry	128K / 41.6 GB	221	5
Strawberry 1	128K / 41.6 GB	406	2
GPT Oss 20B Heretic Ara V4	128K / 13.8 GB	5339	13
OptiMind SFT	128K / 42 GB	15767	102
GPT Oss 20B BF16	128K / 41.6 GB	96874	34
GPT Oss 20B Heretic	128K / 41.6 GB	2413	124

Note: green Score (e.g. "73.2") means that the model is better than chromadb/context-1.