Compare · ModelsLive · 2 picked · head to head
GPT-4.1 vs gpt-oss-20b
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
GPT-4.1 wins on 8/11 benchmarks
GPT-4.1 wins 8 of 11 shared benchmarks. Leads in knowledge · general · language.
Category leads
knowledge·GPT-4.1general·GPT-4.1language·GPT-4.1math·gpt-oss-20breasoning·GPT-4.1coding·gpt-oss-20b
Hype vs Reality
Attention vs performance
GPT-4.1
#189 by perf·no signal
gpt-oss-20b
#97 by perf·no signal
Best value
gpt-oss-20b
124.5x better value than GPT-4.1
GPT-4.1
7.9 pts/$
$5.00/M
gpt-oss-20b
983.3 pts/$
$0.05/M
Vendor risk
Who is behind the model
OpenAI
$840.0B·Tier 1
OpenAI
$840.0B·Tier 1
Head to head
11 benchmarks · 2 models
GPT-4.1gpt-oss-20b
Chess Puzzles
GPT-4.1 leads by +1.1
Chess Puzzles · tests strategic and tactical reasoning by having models solve chess puzzle positions, evaluating lookahead and pattern recognition abilities.
GPT-4.1
1.1
gpt-oss-20b
0.0
Dtbench
GPT-4.1 leads by +0.4
GPT-4.1
47.1
gpt-oss-20b
46.7
GPQA diamond
GPT-4.1 leads by +8.2
Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs.
GPT-4.1
55.9
gpt-oss-20b
47.7
HELM · GPQA
GPT-4.1 leads by +6.5
GPT-4.1
65.9
gpt-oss-20b
59.4
HELM · IFEval
GPT-4.1 leads by +10.6
GPT-4.1
83.8
gpt-oss-20b
73.2
HELM · MMLU-Pro
GPT-4.1 leads by +7.1
GPT-4.1
81.1
gpt-oss-20b
74.0
HELM · Omni-MATH
gpt-oss-20b leads by +9.4
GPT-4.1
47.1
gpt-oss-20b
56.5
HELM · WildBench
GPT-4.1 leads by +11.7
GPT-4.1
85.4
gpt-oss-20b
73.7
Lmca
GPT-4.1 leads by +13.1
GPT-4.1
30.1
gpt-oss-20b
17.1
OTIS Mock AIME 2024-2025
gpt-oss-20b leads by +27.0
OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills.
GPT-4.1
38.3
gpt-oss-20b
65.2
WeirdML
gpt-oss-20b leads by +1.9
WeirdML · tests models on unusual and adversarial machine learning tasks that require creative problem-solving beyond standard patterns.
GPT-4.1
39.0
gpt-oss-20b
40.9
Full benchmark table
| Benchmark | GPT-4.1 | gpt-oss-20b |
|---|---|---|
Chess Puzzles Chess Puzzles · tests strategic and tactical reasoning by having models solve chess puzzle positions, evaluating lookahead and pattern recognition abilities. | 1.1 | 0.0 |
Dtbench | 47.1 | 46.7 |
GPQA diamond Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs. | 55.9 | 47.7 |
HELM · GPQA | 65.9 | 59.4 |
HELM · IFEval | 83.8 | 73.2 |
HELM · MMLU-Pro | 81.1 | 74.0 |
HELM · Omni-MATH | 47.1 | 56.5 |
HELM · WildBench | 85.4 | 73.7 |
Lmca | 30.1 | 17.1 |
OTIS Mock AIME 2024-2025 OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills. | 38.3 | 65.2 |
WeirdML WeirdML · tests models on unusual and adversarial machine learning tasks that require creative problem-solving beyond standard patterns. | 39.0 | 40.9 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $2.00 | $8.00 | 1.0M tokens (~524 books) | $35.00 | |
| $0.02 | $0.09 | 131K tokens (~66 books) | $0.36 |