h2oai / text-generation Open weights updated 2 years ago

h2o-danube3-500m-chat

h2o-danube3-500m-chat is a chat fine-tuned model by H2O.ai with 500 million parameters. We release two versions of this model:

Params
514 M
Context
8,192
Downloads 30d
179 K
Likes
43
Commercial use: allowed apache-2.0 Not gated SAFETENSORS 1 languages View on Hugging Face ↗

Download history

tracking started — chart appears after 7 days of snapshots (6 recorded)
179 K downloads in the last 30 days

Can you run it?

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

FileQuantSizeEst. VRAMVerdict on RTX 4090 · 24 GB
model.safetensors bf16 1.0 GB 1.7 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/h2o-danube3-500m-chat
{
  "hf_id": "h2oai/h2o-danube3-500m-chat",
  "params_b": 0.51,
  "context_length": 8192,
  "license": { "id": "apache-2.0", "commercial": "yes" },
  "downloads_30d": 179005,
  "vram_estimates": [
    { "quant": "bf16", "gb": 1.7 }
  ],
  "updated_at": "2026-10-20T01:00:32Z"
}
est. VRAM —on RTX 4090 · 24 GBJSON API →

Specifications

Architecture
LlamaForCausalLM
Parameters
514 M
Tensor type
BF16
Context length
8,192
Vocabulary
32,000
Layers / heads
16 / 16
Licence
apache-2.0
First seen on the Hub
2024-07-04
Training datasets
undisclosed
Added to our catalog
2026-10-20
Compare with any text-generation model