gpt-oss-120b vs Laguna-S-2.1

Specs, VRAM requirements and download trends — updated 23 October 2026.

openai · A · Open weights
Params
120.4 B
Context
131,072
30d
3.0 M
apache-2.0 · commercial OK
poolside · B · Open weights
Params
117.6 B
Context
1,048,576
30d
397 K

Specification comparison

Differences are highlighted; identical values are muted.

Specification gpt-oss-120b Laguna-S-2.1
Deployment Open weights · also via API Open weights · also via API
Parameters 120.4 B 117.6 B
Architecture GptOssForCausalLM LagunaForCausalLM
Context length 131,072 1,048,576
Licence apache-2.0 openmdw-1.1
Commercial use Allowed Unknown
Languages — —
Downloads 30d 2,964,075 397,257
Downloads all time 60.3 M 552 K
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2025-08-04 2026-07-13
API input price / 1M tokens $0.15 $0.09
API output price / 1M tokens $0.60 $0.18
Est. cost per 1M input + 1M output tokens $0.75 $0.27
Cached input / 1M tokens $0.075 $0.009
AA Intelligence Index 11.6 —
AA Coding Index 30.4 —
AA Agentic Index 3.7 —
Max output tokens 65,536 131,072
API providers 22 1
Tool calling Yes Yes
Reasoning mode Yes Yes

API cost

Estimated cost of 1M input + 1M output tokens via OpenRouter

gpt-oss-120b $0.75
Laguna-S-2.1 $0.27

Laguna-S-2.1 is 2.8× cheaper at list price.

Download trend

Daily snapshots, last 88 days (28 Jul – 23 Oct)

5.5 M190 K
gpt-oss-120b Laguna-S-2.1

VRAM side by side

On RTX 4090 · 24 GB · 8K context unless noted

gpt-oss-120b · fp16 @ 128K ctx 433.0 GB / 24 GB
❌ Won’t fit
Laguna-S-2.1 · fp16 @ 1024K ctx 2,516.3 GB / 24 GB
❌ Won’t fit

Adjacent comparisons