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Claude 3.5 Sonnet vs DeepSeek-V3

Anthropic · released

Wins 0 of 3 areas

—

DeepSeek · released

Wins 3 of 3 areas

Coding · Reasoning · Long documents

DeepSeek-V3 is the stronger all-rounder.

Scores updated · 54 tests both models report · How we compare

Where each one wins

Tests won in each of the three 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 rests on a single test.

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.

Claude 3.5 Sonnet$3.00 to read · $15.00 to write$18Price from Artificial Analysis
DeepSeek-V3$0.24 to read · $0.90 to write$1.14Price from Artificial Analysis

DeepSeek-V3 costs 94% 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 DeepSeek-V3 pulls ahead

  • Recent programming contest problemsLiveCodeBench v6+9.7points aheadDeepSeek-V346.9Claude 3.5 Sonnet37.2
  • Graduate-level biology, physics and chemistry questionsGPQA Diamond+9.5points aheadDeepSeek-V365.5Claude 3.5 Sonnet56
  • Questions about very long textsLongBench v2+7.7points aheadDeepSeek-V348.7Claude 3.5 Sonnet41

Where Claude 3.5 Sonnet pulls ahead

  • Common-sense trick questionsSimpleBench+8.6points aheadClaude 3.5 Sonnet27.5DeepSeek-V318.9
  • Fixes real GitHub issues in Python projectsSWE-bench Verified+7points aheadClaude 3.5 Sonnet49DeepSeek-V342

Every test, side by side

All 54 tests both models report. The winning score is in its model's colour; marks a score checked independently.

CodingDeepSeek-V3

Full coding ranking

ReasoningDeepSeek-V3

Full reasoning ranking

Long documentsDeepSeek-V3

Full long documents ranking

Other results47 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, Claude 3.5 Sonnet or DeepSeek-V3?

DeepSeek-V3 wins all three areas where both have results: coding, reasoning and long documents. Claude 3.5 Sonnet wins none.

Which is better for coding?

DeepSeek-V3. It wins 2 of the 3 coding tests both models report; Claude 3.5 Sonnet wins 1.

Which is cheaper?

Claude 3.5 Sonnet costs $3.00 per million input tokens and $15.00 per million output tokens; DeepSeek-V3 costs $0.24 and $0.90. That makes DeepSeek-V3 about 94% cheaper for the same work.

How do you compare the two?

We use the 54 benchmark tests both models have published scores on. The verdict counts the 7 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 47 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.

Compare Claude 3.5 Sonnet with

Anthropic

Across the field

Compare DeepSeek-V3 with

DeepSeek

Across the field

All comparisons