# DeepSeek-R1-0528 vs GPT-OSS 20B

> Side-by-side benchmark comparison for DeepSeek-R1-0528 and GPT-OSS 20B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/deepseek-r1-0528-vs-gpt-oss-20b
- Last updated: October 14, 2026

- Shared sourced benchmarks: 5
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick DeepSeek-R1-0528 if you want the stronger benchmark profile. GPT-OSS 20B only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- DeepSeek-R1-0528 leads overall 60 to 33.13.
- The biggest single benchmark swing is GPQA in Knowledge, with scores of 81% and 71.5%.

## Model Snapshot

| Property | DeepSeek-R1-0528 | GPT-OSS 20B |
|----------|----------|----------|
| Creator | DeepSeek | OpenAI |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 128K | 128K |
| Overall Score | null | 33.13 |
| Benchmarks Covered | 10 | 7 |
| Pricing (input/output) | N/A | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- DeepSeek-R1-0528 public-lane score: Coming soon
- GPT-OSS 20B public-lane score: 14.6 (Estimated · #112/124)

### Coding

- Winner: Not comparable
- DeepSeek-R1-0528 public-lane score: Coming soon
- GPT-OSS 20B public-lane score: 18.6 (Estimated · #122/149)

| Benchmark | DeepSeek-R1-0528 | GPT-OSS 20B | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench | 73.3% | Coming soon | Coming soon |
| Codeforces | 1930.0 | Coming soon | Coming soon |
| SWE-bench Verified | 57.6% | 60.7% | GPT-OSS 20B |
| React Native Evals | Coming soon | 71% | Coming soon |

### Reasoning

- Winner: Not comparable
- DeepSeek-R1-0528 public-lane score: Coming soon
- GPT-OSS 20B public-lane score: 49.7 (Unranked · 2 rankable rows)

### Knowledge

- Winner: Not comparable
- DeepSeek-R1-0528 public-lane score: Coming soon
- GPT-OSS 20B public-lane score: 34.1 (Supported · #137/181)

| Benchmark | DeepSeek-R1-0528 | GPT-OSS 20B | Winner |
|-----------|-----------|-----------|--------|
| MMLU-Redux | 93.4% | Coming soon | Coming soon |
| MMLU-Pro | 85% | Coming soon | Coming soon |
| GPQA | 81% | 71.5% | DeepSeek-R1-0528 |
| SimpleQA | 27.8% | Coming soon | Coming soon |
| HLE | 17.7% | 10.9% | DeepSeek-R1-0528 |
| MMLU | Coming soon | 85.3% | Coming soon |

### Instruction Following

- Winner: Not comparable
- DeepSeek-R1-0528 public-lane score: Coming soon
- GPT-OSS 20B public-lane score: 79.2 (#57/128)

### Mathematics

- Winner: Not comparable
- DeepSeek-R1-0528 public-lane score: Coming soon
- GPT-OSS 20B public-lane score: Coming soon

| Benchmark | DeepSeek-R1-0528 | GPT-OSS 20B | Winner |
|-----------|-----------|-----------|--------|
| AIME 2024 | 91.4% | 92.1% | GPT-OSS 20B |
| AIME 2025 | 87.5% | 91.7% | GPT-OSS 20B |

## FAQ

### Which is better overall, DeepSeek-R1-0528 or GPT-OSS 20B?

DeepSeek-R1-0528 is ahead overall on BenchLM right now.

### How many benchmarks does DeepSeek-R1-0528 cover on BenchLM?

DeepSeek-R1-0528 currently has 10 sourced benchmark scores on BenchLM.

### How many benchmarks does GPT-OSS 20B cover on BenchLM?

GPT-OSS 20B currently has 7 sourced benchmark scores on BenchLM.

## Related Comparisons

- [DeepSeek-R1-0528 vs DeepSeek-R1](/compare/deepseek-r1-vs-deepseek-r1-0528)
- [GPT-OSS 20B vs DeepSeek-R1](/compare/deepseek-r1-vs-gpt-oss-20b)
- [DeepSeek-R1-0528 vs GPT-OSS 120B](/compare/deepseek-r1-0528-vs-gpt-oss-120b)
- [GPT-OSS 20B vs GPT-OSS 120B](/compare/gpt-oss-120b-vs-gpt-oss-20b)

## Explore More

- [DeepSeek-R1-0528 profile](/models/deepseek-r1-0528)
- [GPT-OSS 20B profile](/models/gpt-oss-20b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)