Claude Opus 4.6 vs DeepSeek V3 0324

Direct comparison between anthropic and deepseek for chat models. Specs, prices, strengths, weaknesses — decide on facts.

At a glance

  • · Cheaper: DeepSeek V3 0324
  • · Longer context window: Claude Opus 4.6 at 200,000 tokens
  • · Claude Opus 4.6: Highest hit rate on SWE-bench among closed-source models
  • · DeepSeek V3 0324: One of the cheapest models with serious coding quality

Spec comparison

SpecClaude Opus 4.6DeepSeek V3 0324
Provideranthropicdeepseek
Input per 1M tokens$5.00 / 1M$0.27 / 1M
Output per 1M tokens$25.00 / 1M$1.12 / 1M
Context window200,000 tok128,000 tok
Max output32,000 tok8,192 tok
Knowledge cutoff2025-07
Vision
Tool calling
JSON mode
Structured output
Reasoning

Claude Opus 4.6 — strengths

  • +Highest hit rate on SWE-bench among closed-source models
  • +Excellent at multi-day agentic tasks without drift
  • +Top performance on multi-repo code analysis

DeepSeek V3 0324 — strengths

  • +One of the cheapest models with serious coding quality
  • +MoE architecture — low active parameters per token
  • +Solid on math, comparable to western mid-tier models

Claude Opus 4.6 — weaknesses

  • Substantially pricier per token than Sonnet — rarely worth the markup
  • Higher latency, especially with extended thinking enabled

DeepSeek V3 0324 — weaknesses

  • Compliance concerns for some EU/US enterprise contexts
  • Knowledge cutoff stronger on Chinese sources than western ones
Details: Claude Opus 4.6Details: DeepSeek V3 0324