As of May 2026, GPT-5.5 leads in coding tasks with an 88.7% SWE-bench Verified score, closely followed by Claude Opus 4.7. For complex reasoning, Claude Opus 4.7 and Gemini 3.1 Pro are nearly tied, with the choice often depending on budget rather than capability. DeepSeek V4 Pro offers the best cost-quality ratio, providing a strong SWE score at a significantly lower price point, though its promotional pricing is set to end soon. AI
Summary written by gemini-2.5-flash-lite from 1 source. How we write summaries →
IMPACT Provides a comparative analysis of leading LLMs, guiding operators on model selection based on specific task requirements and budget.
RANK_REASON The article provides a comparative ranking of LLMs based on performance benchmarks and cost, which falls under research and analysis. [lever_c_demoted from research: ic=1 ai=1.0]