Claude 4.5 Sonnet vs DeepSeek V3

1. Best-in-class coding performance

• #1 on SWE-bench Verified (77.2% standard, 82.0% high-compute).
• Excels at debugging, architecture, and multi-file code generation.
• Maintains coherence for extremely long tasks (30+ hours).

2. State-of-the-art computer use & agents

• Leads OSWorld at 61.4%.
• Strongest model for agentic workflows, multi-step tool use, and real computer control.
• Powering Claude Code, the new Claude Agent SDK, and Chrome agent actions.

3. Advanced reasoning & math

• Large improvements across reasoning-heavy benchmarks (AIME, MMMLU, τ2-bench, Terminal-Bench).
• Deep multi-step reasoning with extended or interleaved thinking.

4. High alignment & safety

• Most aligned Claude model to date with reduced deception, hallucinations, sycophancy, and harmful compliance.
• Strong protections against prompt injection for agentic tasks (ASL-3 safeguards).

5. Domain-expert performance

• Notable gains in finance, law, medicine, and STEM tasks.
• Trusted by early customers for long-context legal analysis, multi-file engineering, security research, and red-teaming.

1. Exceptional at large-scale data analysis

• Designed to handle massive datasets.
• Identifies trends, correlations, and anomalies.

2. High performance in predictive analytics

• Useful for forecasting, modeling, and probabilistic predictions.
• Popular in finance, medical research, and market trend analysis.

3. Optimized for structured, data-heavy workloads

• Stronger at analytical and statistical tasks than general text generation.

4. Enterprise-oriented capabilities

• Built for businesses needing deep insights from continuous data streams.