Deepseek Deepseek R1 vs OpenAI GPT OSS 20B

Detailed comparison for LLMs

DeepseekOpenAI

On Guardion's LLM vulnerability Benchmark, OpenAI GPT OSS 20B is the more secure of the two: Deepseek R1 scores 42.6% and GPT OSS 20B scores 20.0% on attack success rate (ASR) (lower is better). One or both scores are estimated from public safety evaluations pending a Guardion benchmark run.

Head-to-Head Overview

GPT OSS 20B is the overall winner in this comparison!

Attack Success Rate (lower is safer)

ASR for Deepseek Deepseek R1 vs OpenAI GPT OSS 20B. Green marks the safer model on each metric. Only the overall score is available for estimated models.

Overall (ASR)

Deepseek R1
42.6%
GPT OSS 20B
20.0%

TAP Attack Method (ASR)

Deepseek R1
76.9%
GPT OSS 20B
100.0%

Crescendo Attack Method (ASR)

Deepseek R1
34.8%
GPT OSS 20B
100.0%

Zero-Shot (ASR)

Deepseek R1
16.1%
GPT OSS 20B
100.0%

Key Highlights

  • OpenAI GPT OSS 20B has a lower Overall (ASR).
  • Deepseek Deepseek R1 has a lower TAP Attack Method (ASR).
  • Deepseek Deepseek R1 has a lower Crescendo Attack Method (ASR).
  • Deepseek Deepseek R1 has a lower Zero-Shot (ASR).

Security Profile

Outward is better on every axis.

OverallTAPCrescendoZero-Shot
Deepseek R1
GPT OSS 20B
Full security profile
Deepseek Deepseek R1
Full security profile
OpenAI GPT OSS 20B

Frequently asked questions

Is Deepseek Deepseek R1 or OpenAI GPT OSS 20B more secure?

On Guardion's LLM vulnerability Benchmark, OpenAI GPT OSS 20B is the more secure of the two: Deepseek R1 scores 42.6% and GPT OSS 20B scores 20.0% on attack success rate (ASR) (lower is better). One or both scores are estimated from public safety evaluations pending a Guardion benchmark run.

What is the attack success rate (ASR) of Deepseek R1 vs GPT OSS 20B?

Deepseek R1 has a 42.6% ASR and GPT OSS 20B has a 20.0% ASR — the share of adversarial prompts that succeed across zero-shot, TAP, and Crescendo attacks. Lower is safer.

How were Deepseek R1 and GPT OSS 20B tested?

Both were red-teamed with the HarmBench framework across zero-shot, TAP (Tree of Attacks with Pruning), and Crescendo multi-turn attacks, scored by Attack Success Rate.

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