Compare · ModelsLive · 2 picked · head to head
Claude 3.5 Sonnet vs DeepSeek V3
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
DeepSeek V3 wins on 9/17 benchmarks
DeepSeek V3 wins 9 of 17 shared benchmarks. Leads in math · reasoning.
Category leads
coding·Claude 3.5 Sonnetarena·Claude 3.5 Sonnetgeneral·Claude 3.5 Sonnetmath·DeepSeek V3knowledge·Claude 3.5 Sonnetlanguage·Claude 3.5 Sonnetreasoning·DeepSeek V3
Hype vs Reality
Attention vs performance
Claude 3.5 Sonnet
#190 by perf·no signal
DeepSeek V3
#70 by perf·no signal
Vendor risk
Mixed exposure
One or more vendors flagged
Anthropic
$965.0B·Tier 1
DeepSeek
$3.4B·Tier 1
Head to head
17 benchmarks · 2 models
Claude 3.5 SonnetDeepSeek V3
Aider polyglot
Claude 3.5 Sonnet leads by +3.2
Aider Polyglot · measures how well AI models can edit code across multiple programming languages using the Aider coding assistant framework.
Claude 3.5 Sonnet
51.6
DeepSeek V3
48.4
Chatbot Arena Elo · Overall
Claude 3.5 Sonnet leads by +15.5
Claude 3.5 Sonnet
1374.0
DeepSeek V3
1358.4
Dtbench
Claude 3.5 Sonnet leads by +5.0
Claude 3.5 Sonnet
46.3
DeepSeek V3
41.3
FrontierMath-2025-02-28-Private
DeepSeek V3 leads by +1.2
FrontierMath (Feb 2025) · original research-level math problems created by mathematicians, testing capabilities at the boundary of current AI mathematical reasoning.
Claude 3.5 Sonnet
1.8
DeepSeek V3
3.0
GPQA diamond
DeepSeek V3 leads by +3.3
Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs.
Claude 3.5 Sonnet
38.7
DeepSeek V3
42.0
HELM · GPQA
Claude 3.5 Sonnet leads by +2.7
Claude 3.5 Sonnet
56.5
DeepSeek V3
53.8
HELM · IFEval
Claude 3.5 Sonnet leads by +2.4
Claude 3.5 Sonnet
85.6
DeepSeek V3
83.2
HELM · MMLU-Pro
Claude 3.5 Sonnet leads by +5.4
Claude 3.5 Sonnet
77.7
DeepSeek V3
72.3
HELM · Omni-MATH
DeepSeek V3 leads by +12.7
Claude 3.5 Sonnet
27.6
DeepSeek V3
40.3
HELM · WildBench
DeepSeek V3 leads by +3.9
Claude 3.5 Sonnet
79.2
DeepSeek V3
83.1
Lech Mazur Writing
Claude 3.5 Sonnet leads by +3.3
Lech Mazur Writing · evaluates creative writing ability, assessing prose quality, narrative coherence, and stylistic sophistication.
Claude 3.5 Sonnet
80.3
DeepSeek V3
77.0
MATH level 5
DeepSeek V3 leads by +13.2
MATH Level 5 · the hardest tier of the MATH benchmark, featuring competition-level problems from AMC, AIME, and Olympiad-style mathematics.
Claude 3.5 Sonnet
51.7
DeepSeek V3
64.8
Metr Time Horizons
DeepSeek V3 leads by +7.2
Claude 3.5 Sonnet
40.1
DeepSeek V3
47.4
MMLU
DeepSeek V3 leads by +0.9
Massive Multitask Language Understanding · 57 subjects spanning STEM, humanities, social sciences, and more. The standard benchmark for broad knowledge.
Claude 3.5 Sonnet
82.0
DeepSeek V3
82.9
OTIS Mock AIME 2024-2025
DeepSeek V3 leads by +9.3
OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills.
Claude 3.5 Sonnet
6.4
DeepSeek V3
15.8
SimpleBench
Claude 3.5 Sonnet leads by +10.3
SimpleBench · tests fundamental reasoning capabilities with straightforward problems designed to expose gaps in basic logical and spatial thinking.
Claude 3.5 Sonnet
13.0
DeepSeek V3
2.7
WeirdML
DeepSeek V3 leads by +5.1
WeirdML · tests models on unusual and adversarial machine learning tasks that require creative problem-solving beyond standard patterns.
Claude 3.5 Sonnet
31.0
DeepSeek V3
36.1
Full benchmark table
| Benchmark | Claude 3.5 Sonnet | DeepSeek V3 |
|---|---|---|
Aider polyglot Aider Polyglot · measures how well AI models can edit code across multiple programming languages using the Aider coding assistant framework. | 51.6 | 48.4 |
Chatbot Arena Elo · Overall | 1374.0 | 1358.4 |
Dtbench | 46.3 | 41.3 |
FrontierMath-2025-02-28-Private FrontierMath (Feb 2025) · original research-level math problems created by mathematicians, testing capabilities at the boundary of current AI mathematical reasoning. | 1.8 | 3.0 |
GPQA diamond Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs. | 38.7 | 42.0 |
HELM · GPQA | 56.5 | 53.8 |
HELM · IFEval | 85.6 | 83.2 |
HELM · MMLU-Pro | 77.7 | 72.3 |
HELM · Omni-MATH | 27.6 | 40.3 |
HELM · WildBench | 79.2 | 83.1 |
Lech Mazur Writing Lech Mazur Writing · evaluates creative writing ability, assessing prose quality, narrative coherence, and stylistic sophistication. | 80.3 | 77.0 |
MATH level 5 MATH Level 5 · the hardest tier of the MATH benchmark, featuring competition-level problems from AMC, AIME, and Olympiad-style mathematics. | 51.7 | 64.8 |
Metr Time Horizons | 40.1 | 47.4 |
MMLU Massive Multitask Language Understanding · 57 subjects spanning STEM, humanities, social sciences, and more. The standard benchmark for broad knowledge. | 82.0 | 82.9 |
OTIS Mock AIME 2024-2025 OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills. | 6.4 | 15.8 |
SimpleBench SimpleBench · tests fundamental reasoning capabilities with straightforward problems designed to expose gaps in basic logical and spatial thinking. | 13.0 | 2.7 |
WeirdML WeirdML · tests models on unusual and adversarial machine learning tasks that require creative problem-solving beyond standard patterns. | 31.0 | 36.1 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| — | — | — | — | |
| $0.26 | $1.03 | 164K tokens (~82 books) | $4.50 |
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