Key takeaways OpenAI’s GPT-5 series, launched in 2025, sets new benchmarks across math, coding, and multimodal understanding. GPT-5 achieves 94.6% on AIME 2025 math, 74.9% on SWE-bench Verified coding, and 84.2% on MMMU multimodal reasoning, per OpenAI’s official benchmarks. Google’s Gemini…