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Llama 3.1 70B Instruct vs Llama 3 Instruct 8B

Meta · released

Wins 5 of 5 areas

Coding · Reasoning · Facts · Long documents · Following instructions

Meta · released

Wins 0 of 5 areas

—

Llama 3.1 70B Instruct is the stronger all-rounder.Llama 3 Instruct 8B is cheaper.

Scores updated · 31 tests both models report · How we compare

Where each one wins

Tests won in each of the five 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.

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 Instruct 8B$0.04 to read · $0.14 to write$0.19Price from Artificial Analysis

Llama 3 Instruct 8B costs 83% less for the same work.

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 70B Instruct pulls ahead

  • Code for real scientific research problemsSciCode+14.8points aheadLlama 3.1 70B Instruct26.7Llama 3 Instruct 8B11.9
  • Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+11.6points aheadLlama 3.1 70B Instruct21.8Llama 3 Instruct 8B10.2
  • Graduate-level biology, physics and chemistry questionsGPQA Diamond+11.3points aheadLlama 3.1 70B Instruct40.9Llama 3 Instruct 8B29.6

Where Llama 3 Instruct 8B pulls ahead

No clear win on a test scored out of 100.

Every test, side by side

All 31 tests both models report. The winning score is in its model's colour; marks a score checked independently.

CodingLlama 3.1 70B Instruct

Full coding ranking

ReasoningLlama 3.1 70B Instruct

Full reasoning ranking

FactsLlama 3.1 70B Instruct

Full facts ranking

Long documentsLlama 3.1 70B Instruct
  • AA-LCRLlama 3.1 70B Instruct by 880+8

Full long documents ranking

Following instructionsLlama 3.1 70B Instruct
  • IFBenchLlama 3.1 70B Instruct by 9.834.424.6+9.8

Full following instructions ranking

Other results22 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 Instruct 8B?

Llama 3.1 70B Instruct wins all five areas where both have results: coding, reasoning, facts, long documents and following instructions. Llama 3 Instruct 8B wins none, but costs 83% less.

Which is better for coding?

Llama 3.1 70B Instruct. It wins 2 of the 2 coding tests both models report; Llama 3 Instruct 8B wins none.

Which is cheaper?

Llama 3.1 70B Instruct costs $0.56 per million input tokens and $0.56 per million output tokens; Llama 3 Instruct 8B costs $0.04 and $0.14. That makes Llama 3 Instruct 8B about 83% cheaper for the same work.

How do you compare the two?

We use the 31 benchmark tests both models have published scores on. The verdict counts the 9 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 22 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.