openai / text-generation Open weights Also via API updated 1 year ago

gpt-oss-120b

Welcome to the gpt-oss series, OpenAI’s open-weight models designed for powerful reasoning, agentic tasks, and versatile developer use cases.

Params
120.4 B
Context
131,072
Downloads 30d
2.4 M
Likes
5,501
Commercial use: allowed apache-2.0 Not gated SAFETENSORS View on Hugging Face ↗

Download history

daily snapshots · 106 days
▲ 1.4 M in the last 30 days (37.1%)
5.5 M2.4 M
Jul 28Sep 1Oct 6Nov 10

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 u8 130.5 GB 162.1 GB ❌ Won’t fit
model.safetensors (bf16, full) bf16 + 128K ctx 130.5 GB 433.0 GB ❌ Won’t fit
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/gpt-oss-120b
{
  "hf_id": "openai/gpt-oss-120b",
  "params_b": 120.41,
  "context_length": 131072,
  "license": { "id": "apache-2.0", "commercial": "yes" },
  "downloads_30d": 2417644,
  "vram_estimates": [
    { "quant": "u8", "gb": 162.1 }
  ],
  "updated_at": "2026-07-28T17:06:58Z"
}
est. VRAM —on RTX 4090 · 24 GBJSON API →

Use via API

via OpenRouter · USD per 1M tokens · synced 2026-11-10
$0.15
input / 1M
$0.60
output / 1M
$0.075
cached input / 1M
$0.75
1M in + 1M out
:batch variant $0.03 in · $0.14 out
Context window
131,072 tokens
Max output
65,536 tokens
Providers
22
Cheapest provider
PrimeIntellect · $0.04 / $0.085
Best throughput
—
AA Intelligence / Coding / Agentic
3.8 / 30.4 / 3.7
✓ Tool calling ✓ Reasoning ✓ Structured outputs ✗ Image input ✗ File input ✗ Audio input ✓ Prompt caching

Specifications

Architecture
GptOssForCausalLM
Parameters
120.4 B
Tensor type
U8
Context length
131,072
Vocabulary
201,088
Layers / heads
36 / 64
Licence
apache-2.0
First seen on the Hub
2025-08-04
Training datasets
undisclosed
Added to our catalog
2026-07-28
Compare with any text-generation model