gpt-oss-20b vs ReMM-SLERP-L2-13B

Specs, VRAM requirements and download trends — updated 25 October 2026.

openai · A · Open weights
Params
21.5 B
Context
131,072
30d
5.8 M
apache-2.0 · commercial OK
Undi95 · B · Open weights
Params
13.0 B
Context
4,096
30d
729
cc-by-nc-4.0 · non-commercial

Specification comparison

Differences are highlighted; identical values are muted.

Specification gpt-oss-20b ReMM-SLERP-L2-13B
Deployment Open weights · also via API Open weights · also via API
Parameters 21.5 B 13.0 B
Architecture GptOssForCausalLM LlamaForCausalLM
Context length 131,072 4,096
Licence apache-2.0 cc-by-nc-4.0
Commercial use Allowed Not allowed
Languages — —
Downloads 30d 5,764,154 729
Downloads all time 105.3 M 87 K
Quantizations on the Hub SAFETENSORS —
Gated No No
First seen on the Hub 2025-08-04 2023-09-04
API input price / 1M tokens $0.018 $0.35
API output price / 1M tokens $0.09 $0.65
Est. cost per 1M input + 1M output tokens $0.11 $1.00
Cached input / 1M tokens $0.009 —
AA Intelligence Index 10 —
AA Coding Index — —
AA Agentic Index — —
Max output tokens 32,768 5,529
API providers 10 1
Tool calling Yes No
Reasoning mode Yes No

API cost

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

gpt-oss-20b $0.11
ReMM-SLERP-L2-13B $1.00

gpt-oss-20b is 9.3× cheaper at list price.

Download trend

Daily snapshots, last 90 days (28 Jul – 25 Oct)

8.6 M620
gpt-oss-20b ReMM-SLERP-L2-13B

VRAM side by side

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

gpt-oss-20b · fp16 @ 128K ctx 82.4 GB / 24 GB
❌ Won’t fit

Adjacent comparisons