Zyphra / text-generation updated 1 year ago

Zamba2-1.2B-instruct

Name: Zamba2-1.2B-instruct
Author: Zyphra

Zamba2-1.2B-instruct is obtained from Zamba2-1.2B by fine-tuning on instruction-following and chat datasets. Specifically:

Params

1.2 B

Context

4,096

Downloads 30d

429 K

Likes

Commercial use: allowed apache-2.0 Not gated SAFETENSORS View on Hugging Face ↗

Download history

daily snapshots · 10 days

436 K413 K

Jul 28Jul 31Aug 3Aug 6

Can you run it?

Estimated VRAM at 8K context unless noted. Pick your hardware to see the verdict per quantization.

File	Quant	Size	Est. VRAM	Verdict on RTX 4090 · 24 GB
model.safetensors	f32	4.9 GB	6.0 GB	✅ Runs comfortably

Estimate: file size × 1.1 + KV cache at 8K + 0.5 GB overhead. Not a benchmark — how we calculate this.

Run it

copy-paste, exact tags checked against the Hub

~ · curl · api/v1

$ curl -s https://aimodelscomparison.com/api/v1/models/zamba2-1-2b-instruct
{
  "hf_id": "Zyphra/Zamba2-1.2B-instruct",
  "params_b": 1.22,
  "context_length": 4096,
  "license": { "id": "apache-2.0", "commercial": "yes" },
  "downloads_30d": 429320,
  "vram_estimates": [
    { "quant": "f32", "gb": 6.0 }
  ],
  "updated_at": "2026-07-28T18:05:33Z"
}

est. VRAM —on RTX 4090 · 24 GBJSON API →

Specifications

Architecture: Zamba2ForCausalLM
Parameters: 1.2 B
Tensor type: F32
Context length: 4,096
Vocabulary: 32,000
Layers / heads: 38 / 32
Licence: apache-2.0
First seen on the Hub: 2024-09-19
Training datasets: HuggingFaceH4/ultrachat_200k, BAAI/Infinity-Instruct, HuggingFaceH4/ultrafeedback_binarized, Intel/orca_dpo_pairs, argilla/OpenHermesPreferences
Added to our catalog: 2026-07-28

Compare with

Qwen3-0.6B 29.7 M Qwen2.5-1.5B-Instruct 14.0 M Llama-3.2-1B-Instruct 10.4 M Qwen3-1.7B 7.8 M Qwen2.5-0.5B-Instruct 6.6 M gemma-3-1b-it 4.7 M

Appears in

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