Claude Sonnet 4 vs Llama 3.3 70B Instruct
Wins 6 of 6 areas
Coding · Agents · Reasoning · Facts · Long documents · Following instructions
Wins 0 of 6 areas
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Claude Sonnet 4 is the stronger all-rounder.Llama 3.3 70B Instruct is cheaper.
Scores updated · 26 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.
- ReasoningHard problems that need careful thinking30Claude Sonnet 43 of 4 tests · 1 tie
- CodingWriting and fixing software30Claude Sonnet 43 of 3 tests
- AgentsCarrying out multi-step tasks on its own20Claude Sonnet 42 of 2 tests
- FactsGetting facts right instead of making them up21Claude Sonnet 42 of 3 tests
- Long documentsFinding answers in very long texts10Claude Sonnet 41 of 1 test
- Following instructionsDoing exactly what it is asked10Claude Sonnet 41 of 1 test
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 3.3 70B Instruct costs 92% 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 Claude Sonnet 4 pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+61.1points ahead
- Reasons across sets of long documentsAA-LCR+54.6points ahead
- Command-line tasks in a real terminalTerminal-Bench 2.1+31.4points ahead
Where Llama 3.3 70B Instruct pulls ahead
No clear win on a test scored out of 100.
Every test, side by side
All 26 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingClaude Sonnet 4
- Terminal-Bench 2.1Claude Sonnet 4 by 31.436.34.9+31.4
- Terminal-Bench HardClaude Sonnet 4 by 28.131.13+28.1
- SciCodeClaude Sonnet 4 by 144026+14
AgentsClaude Sonnet 4
- τ-Bench V3 · BankingClaude Sonnet 4 by 15.716.71+15.7
- GDPValClaude Sonnet 4 by 9.79.70+9.7
ReasoningClaude Sonnet 4
- GPQA DiamondClaude Sonnet 4 by 27.977.749.8+27.9
- SimpleBenchClaude Sonnet 4 by 25.645.519.9+25.6
- Humanity's Last ExamClaude Sonnet 4 by 7.110.73.6+7.1
- CritPttie0.30tie
FactsClaude Sonnet 4
- AA-Omniscience · Non-hallucinationClaude Sonnet 4 by 61.170.99.8+61.1
- Vectara HHEM hallucination ratelower is betterLlama 3.3 70B Instruct by 6.210.34.1+6.2
- AA-Omniscience · AccuracyClaude Sonnet 4 by 3.722.718.9+3.7
Following instructionsClaude Sonnet 4
- IFBenchClaude Sonnet 4 by 7.654.747.1+7.6
Other results12 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-OmniscienceClaude Sonnet 4 by 54.40.2-54.2+54.4
- τ²-Bench Telecom (AA run)Claude Sonnet 4 by 3864.626.6+38
- LiveCodeBenchClaude Sonnet 4 by 35.268.533.3+35.2
- Artificial Analysis Coding IndexClaude Sonnet 4 by 25.737.611.9+25.7
- MMLU-ProClaude Sonnet 4 by 14.883.768.9+14.8
- AA IntelligenceClaude Sonnet 4 by 11.218.97.7+11.2
- vectara_avg_summary_lengthClaude Sonnet 4 by 81.2 rating points145.864.6+81.2 rating
- vectara_factual_consistencyLlama 3.3 70B Instruct by 6.289.795.9+6.2
- MMLUClaude Sonnet 4 by 5.591.586+5.5
- SimpleQALlama 3.3 70B Instruct by 515.920.9+5
- IFEvalLlama 3.3 70B Instruct by 4.587.692.1+4.5
- vectara_answer_ratetie98.699.5tie
Questions people ask
Which is better, Claude Sonnet 4 or Llama 3.3 70B Instruct?
Claude Sonnet 4 wins all six areas where both have results: coding, agents, reasoning, facts, long documents and following instructions. Llama 3.3 70B Instruct wins none, but costs 92% less.
Which is better for coding?
Claude Sonnet 4. It wins 3 of the 3 coding tests both models report; Llama 3.3 70B Instruct wins none.
Which is cheaper?
Claude Sonnet 4 costs $3.00 per million input tokens and $15.00 per million output tokens; Llama 3.3 70B Instruct costs $0.71 and $0.72. That makes Llama 3.3 70B Instruct about 92% cheaper for the same work.
How do you compare the two?
We use the 26 benchmark tests both models have published scores on. The verdict counts the 14 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 12 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.