LFM2-1.2B vs Llama 3.1 Instruct 405B
Wins 0 of 6 areas
—
Wins 4 of 6 areas
Coding · Facts · Long documents · Following instructions
Llama 3.1 Instruct 405B is the stronger all-rounder.
Scores updated · 19 tests both models report · How we compare
Where each one wins
Tests won in each of the six areas where both have results. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
- CodingWriting and fixing software02Llama 3.1 Instruct 405B2 of 2 tests
- FactsGetting facts right instead of making them up02Llama 3.1 Instruct 405B2 of 2 tests
- Long documentsFinding answers in very long texts01Llama 3.1 Instruct 405B1 of 1 test
- Following instructionsDoing exactly what it is asked01Llama 3.1 Instruct 405B1 of 1 test
- AgentsCarrying out multi-step tasks on its own00Even0 each · 1 tie
- ReasoningHard problems that need careful thinking11Even1 each · 1 tie
Agents, long documents and following instructions rest on a single test each.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where Llama 3.1 Instruct 405B pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+29points ahead
- Graduate-level biology, physics and chemistry questionsGPQA Diamond+28.7points ahead
- Code for real scientific research problemsSciCode+27.4points ahead
Where LFM2-1.2B pulls ahead
- Very hard expert questions across many subjectsHumanity's Last Exam+1.6points ahead
Every test, side by side
All 19 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingLlama 3.1 Instruct 405B
- SciCodeLlama 3.1 Instruct 405B by 27.42.529.9+27.4
- Terminal-Bench HardLlama 3.1 Instruct 405B by 6.806.8+6.8
ReasoningEven
- GPQA DiamondLlama 3.1 Instruct 405B by 28.722.851.5+28.7
- Humanity's Last ExamLFM2-1.2B by 1.65.64+1.6
- CritPttie00tie
FactsLlama 3.1 Instruct 405B
- AA-Omniscience · Non-hallucinationLlama 3.1 Instruct 405B by 2918.647.6+29
- AA-Omniscience · AccuracyLlama 3.1 Instruct 405B by 18.34.923.2+18.3
Long documentsLlama 3.1 Instruct 405B
- AA-LCRLlama 3.1 Instruct 405B by 25.3025.3+25.3
Following instructionsLlama 3.1 Instruct 405B
- IFBenchLlama 3.1 Instruct 405B by 172239+17
Other results9 tests, not counted
Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.
- AA-OmniscienceLlama 3.1 Instruct 405B by 55.3-72.4-17.1+55.3
- GSM8KLlama 3.1 Instruct 405B by 38.558.396.8+38.5
- MGSMLlama 3.1 Instruct 405B by 36.65591.6+36.6
- MMLULlama 3.1 Instruct 405B by 33.455.288.6+33.4
- MMMLULlama 3.1 Instruct 405B by 27.146.773.8+27.1
- IFEvalLlama 3.1 Instruct 405B by 13.774.988.6+13.7
- τ²-Bench Telecom (AA run)Llama 3.1 Instruct 405B by 6.412.619+6.4
- AA IntelligenceLlama 3.1 Instruct 405B by 2.54.87.3+2.5
- AA Agentic IndexLlama 3.1 Instruct 405B by 2.14.26.3+2.1
Questions people ask
Which is better, LFM2-1.2B or Llama 3.1 Instruct 405B?
Llama 3.1 Instruct 405B wins four of the six areas where both have results: coding, facts, long documents and following instructions. LFM2-1.2B wins none. They are level on agents and reasoning.
Which is better for coding?
Llama 3.1 Instruct 405B. It wins 2 of the 2 coding tests both models report; LFM2-1.2B wins none.
How do you compare the two?
We use the 19 benchmark tests both models have published scores on. The verdict counts the 10 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 9 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.