Model comparison

Falcon-40B vs gpt-oss-20b

gpt-oss-20b has enough public results to be ranked (#255); Falcon-40B does not yet, so treat this comparison as directional.

Last verified . 1 shared benchmarks.

Summary

  • They share 1 benchmark with published results for both.

Side by side

Falcon-40B and gpt-oss-20b specifications
Falcon-40Bgpt-oss-20b
ProviderTechnology Innovation InstituteOpenAI
Noometry Index—32.5
Released2023-03-152025-08-05
WeightsOpenOpen
Context window—131K
Max output—16K
Input $ / M tokens—$0.018
Output $ / M tokens—$0.09
Results tracked1234

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Category by category

Coding Not comparable

Falcon-40B: —, gpt-oss-20b: 37.6 (#192)

Coding benchmarks
BenchmarkFalcon-40Bgpt-oss-20b
SciCode—34.4%
WeirdML—40.9%
LMArena Coding—1306
ALE-Bench—566.05

Agentic & Tool Use Not comparable

Falcon-40B: —, gpt-oss-20b: 9.3 (#154)

Agentic & Tool Use benchmarks
BenchmarkFalcon-40Bgpt-oss-20b
Terminal-Bench—3.4%

Reasoning Not comparable

Falcon-40B: —, gpt-oss-20b: 19.3 (#261)

Reasoning benchmarks
BenchmarkFalcon-40Bgpt-oss-20b
Epoch Capabilities Index104.45137.82
Kagi LLM Benchmark—53.2%
CritPt—1.4%
Chess Puzzles—4%
LMArena Hard Prompts—1274
DTBench—68%
LMCA—14.5%
BIG-Bench Hard37.1%—
HellaSwag85.3%—
LAMBADA77.3%—
PIQA83%—
WinoGrande76.9%—

Math Not comparable

Falcon-40B: —, gpt-oss-20b: 39.4 (#103)

Math benchmarks
BenchmarkFalcon-40Bgpt-oss-20b
OTIS Mock AIME 2024-2025—65.3%
Omni-MATH—56.5%
LMArena Math—1317
GSM8K33.8%—

Knowledge Not comparable

Falcon-40B: —, gpt-oss-20b: 34.6 (#195)

Knowledge benchmarks
BenchmarkFalcon-40Bgpt-oss-20b
GPQA Diamond—60.8%
MMLU-Pro—74%
GPQA (HELM)—59.4%
LMArena Expert—1258
ARC (AI2) Challenge61.9%—
BoolQ83.1%—
MMLU56.9%—
OpenBookQA56.6%—
TriviaQA79.9%—

Multilingual Not comparable

Falcon-40B: —, gpt-oss-20b: 42.2 (#197)

Multilingual benchmarks
BenchmarkFalcon-40Bgpt-oss-20b
LMArena Non-English—1268
LMArena Chinese—1314
LMArena German—1255
LMArena Japanese—1244
LMArena Korean—1236
LMArena Russian—1278
LMArena Spanish—1267

Instruction Following Not comparable

Falcon-40B: —, gpt-oss-20b: 61.8 (#240)

Instruction Following benchmarks
BenchmarkFalcon-40Bgpt-oss-20b
IFEval—73.2%
LMArena Instruction Following—1236

Long Context Not comparable

Falcon-40B: —, gpt-oss-20b: 37.9 (#209)

Long Context benchmarks
BenchmarkFalcon-40Bgpt-oss-20b
LMArena Longer Query—1250

Writing & Preference Not comparable

Falcon-40B: —, gpt-oss-20b: 35.5 (#265)

Writing & Preference benchmarks
BenchmarkFalcon-40Bgpt-oss-20b
LMArena Text—1287
LMArena Creative Writing—1201
EQ-Bench Creative Writing—666
WildBench—73.7%
LMArena Multi-Turn—1268

Frequently asked questions

Is Falcon-40B better than gpt-oss-20b?

gpt-oss-20b has enough public results to be ranked (#255); Falcon-40B does not yet, so treat this comparison as directional.

How many benchmarks do Falcon-40B and gpt-oss-20b share?

1 benchmark has published results for both models. Falcon-40B has 12 scored results on Noometry and gpt-oss-20b has 34.

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