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GPT OSS 20B Low


GPT OSS 20B Low is an AI model from OpenAI. An open-weights GPT model at the 20B parameter scale, offered at a low-cost inference tier for budget-conscious deployments.
Specifications
Canonical IDopenai-gpt-oss-20b-low
StatusActive
CreatorOpenAIOpenAI
Benchmarks
Intelligence Index
20.8
#209
Coding Index
14.4
#226
Math Index
62.3
#107
MMLU-Pro
0.7
#192
GPQA
0.6
#242
HLE
0.1
#269
LiveCodeBench
0.7
#88
IFBench
0.6
#101
Time to First Token
0.42s
#223
SciCode
0.3
#180
AIME 2025
0.6
#107
LCR
0.3
#197
TerminalBench Hard
0.0
#254
TAU2
0.5
#156
Output TPS

Capabilities

Input0/5
Text·
Image·
Audio·
Video·
PDF·
Output0/5
Text·
Image·
Audio·
Video·
Embedding·
Capabilities0/13
Reasoning·
Adaptive Reasoning·
Function Calling·
Parallel Function Calling·
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
GPT-5.51.1M$5.00$30.00Available
GPT-5.4 Mini1.1M$0.750$4.50Available
GPT-5.4 Nano1.1M$0.200$1.25Available
GPT-5.41.1M$2.50$15.00Available
GPT-5.3 Codex400K$1.75$14.00Available
GPT-5.2 Codex400K$1.75$14.00Available
GPT-5.2410K$1.75$14.00Available
GPT-5.1410K$1.25$10.00Available
GPT-5.1 Codex400K$1.25$10.00Available
GPT-5.1 Codex Mini400K$0.250$2.00Available
GPT OSS 20B LowCurrent

Model IDs