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Llama 3.1 70B Instruct vs Llama 3.1 Instruct 405B

Meta · released

Wins 0 of 6 areas

—

Meta · released

Wins 5 of 6 areas

Coding · Reasoning · Facts · Long documents · Following instructions

Llama 3.1 Instruct 405B is the stronger all-rounder.

Scores updated · 49 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.

Agents, long documents and following instructions rest on a single test each.

What it costs

Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.

Llama 3.1 70B Instruct$0.56 to read · $0.56 to write$1.12Price from Artificial Analysis
Llama 3.1 Instruct 405BNo current price is tracked.

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+25.8points aheadLlama 3.1 Instruct 405B47.6Llama 3.1 70B Instruct21.8
  • Reasons across sets of long documentsAA-LCR+17.3points aheadLlama 3.1 Instruct 405B25.3Llama 3.1 70B Instruct8
  • Graduate-level biology, physics and chemistry questionsGPQA Diamond+10.6points aheadLlama 3.1 Instruct 405B51.5Llama 3.1 70B Instruct40.9

Where Llama 3.1 70B Instruct pulls ahead

No clear win on a test scored out of 100.

Every test, side by side

All 49 tests both models report. The winning score is in its model's colour; marks a score checked independently.

CodingLlama 3.1 Instruct 405B

Full coding ranking

AgentsEven

Full agents ranking

ReasoningLlama 3.1 Instruct 405B

Full reasoning ranking

FactsLlama 3.1 Instruct 405B

Full facts ranking

Long documentsLlama 3.1 Instruct 405B
  • AA-LCRLlama 3.1 Instruct 405B by 17.3825.3+17.3

Full long documents ranking

Following instructionsLlama 3.1 Instruct 405B
  • IFBenchLlama 3.1 Instruct 405B by 4.634.439+4.6

Full following instructions ranking

Other results39 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.

Questions people ask

Which is better, Llama 3.1 70B Instruct or Llama 3.1 Instruct 405B?

Llama 3.1 Instruct 405B wins five of the six areas where both have results: coding, reasoning, facts, long documents and following instructions. Llama 3.1 70B Instruct wins none. They are level on agents.

Which is better for coding?

Llama 3.1 Instruct 405B. It wins 2 of the 2 coding tests both models report; Llama 3.1 70B Instruct wins none.

How do you compare the two?

We use the 49 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 39 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.