Compare · ModelsLive · 2 picked · head to head
gpt-oss-120b vs o1
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
gpt-oss-120b wins on 7/13 benchmarks
gpt-oss-120b wins 7 of 13 shared benchmarks. Leads in agentic · general · math.
Category leads
coding·o1agentic·gpt-oss-120bknowledge·o1general·gpt-oss-120bmath·gpt-oss-120breasoning·o1
Hype vs Reality
Attention vs performance
gpt-oss-120b
#127 by perf·no signal
o1
#158 by perf·no signal
Best value
gpt-oss-120b
392.6x better value than o1
gpt-oss-120b
475.4 pts/$
$0.10/M
o1
1.2 pts/$
$37.50/M
Vendor risk
Who is behind the model
OpenAI
$840.0B·Tier 1
OpenAI
$840.0B·Tier 1
Head to head
13 benchmarks · 2 models
gpt-oss-120bo1
Aider polyglot
o1 leads by +19.9
Aider Polyglot · measures how well AI models can edit code across multiple programming languages using the Aider coding assistant framework.
gpt-oss-120b
41.8
o1
61.7
APEX-Agents
gpt-oss-120b leads by +3.3
APEX-Agents · evaluates AI agents on complex, multi-step tasks requiring planning, tool use, and autonomous decision-making in realistic environments.
gpt-oss-120b
4.4
o1
1.1
Chess Puzzles
gpt-oss-120b leads by +5.3
Chess Puzzles · tests strategic and tactical reasoning by having models solve chess puzzle positions, evaluating lookahead and pattern recognition abilities.
gpt-oss-120b
15.8
o1
10.6
Dtbench
gpt-oss-120b leads by +2.7
gpt-oss-120b
60.5
o1
57.8
Fiction.LiveBench
o1 leads by +38.9
Fiction.LiveBench · a continuously updated benchmark using recently published fiction to test reading comprehension and reasoning, preventing data contamination.
gpt-oss-120b
44.4
o1
83.3
GPQA diamond
o1 leads by +1.3
Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs.
gpt-oss-120b
67.7
o1
69.0
Lech Mazur Writing
gpt-oss-120b leads by +6.9
Lech Mazur Writing · evaluates creative writing ability, assessing prose quality, narrative coherence, and stylistic sophistication.
gpt-oss-120b
77.1
o1
70.2
Lmca
o1 leads by +0.1
gpt-oss-120b
26.1
o1
26.2
Metr Time Horizons
gpt-oss-120b leads by +5.6
gpt-oss-120b
56.6
o1
51.0
OTIS Mock AIME 2024-2025
gpt-oss-120b leads by +15.6
OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills.
gpt-oss-120b
88.9
o1
73.3
SimpleBench
o1 leads by +21.6
SimpleBench · tests fundamental reasoning capabilities with straightforward problems designed to expose gaps in basic logical and spatial thinking.
gpt-oss-120b
6.5
o1
28.1
SimpleQA Verified
o1 leads by +27.2
SimpleQA Verified · short factual questions with verified answers, measuring factual accuracy and the tendency to hallucinate or provide incorrect information.
gpt-oss-120b
13.9
o1
41.1
WeirdML
gpt-oss-120b leads by +2.1
WeirdML · tests models on unusual and adversarial machine learning tasks that require creative problem-solving beyond standard patterns.
gpt-oss-120b
48.2
o1
46.1
Full benchmark table
| Benchmark | gpt-oss-120b | o1 |
|---|---|---|
Aider polyglot Aider Polyglot · measures how well AI models can edit code across multiple programming languages using the Aider coding assistant framework. | 41.8 | 61.7 |
APEX-Agents APEX-Agents · evaluates AI agents on complex, multi-step tasks requiring planning, tool use, and autonomous decision-making in realistic environments. | 4.4 | 1.1 |
Chess Puzzles Chess Puzzles · tests strategic and tactical reasoning by having models solve chess puzzle positions, evaluating lookahead and pattern recognition abilities. | 15.8 | 10.6 |
Dtbench | 60.5 | 57.8 |
Fiction.LiveBench Fiction.LiveBench · a continuously updated benchmark using recently published fiction to test reading comprehension and reasoning, preventing data contamination. | 44.4 | 83.3 |
GPQA diamond Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs. | 67.7 | 69.0 |
Lech Mazur Writing Lech Mazur Writing · evaluates creative writing ability, assessing prose quality, narrative coherence, and stylistic sophistication. | 77.1 | 70.2 |
Lmca | 26.1 | 26.2 |
Metr Time Horizons | 56.6 | 51.0 |
OTIS Mock AIME 2024-2025 OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills. | 88.9 | 73.3 |
SimpleBench SimpleBench · tests fundamental reasoning capabilities with straightforward problems designed to expose gaps in basic logical and spatial thinking. | 6.5 | 28.1 |
SimpleQA Verified SimpleQA Verified · short factual questions with verified answers, measuring factual accuracy and the tendency to hallucinate or provide incorrect information. | 13.9 | 41.1 |
WeirdML WeirdML · tests models on unusual and adversarial machine learning tasks that require creative problem-solving beyond standard patterns. | 48.2 | 46.1 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $0.04 | $0.17 | 131K tokens (~66 books) | $0.70 | |
| $15.00 | $60.00 | 200K tokens (~100 books) | $262.50 |