APIOpenAI· Top pick
GPT-5.5
Strongest all-round reasoning and coding; priority tier for low latency.
Overall score96
General & reasoning
Frontier assistants for reasoning, coding and daily work.
02APIGoogle DeepMind
Gemini 3.1 Pro
Huge context and native multimodal input (text, image, audio, video).
Score94
03APIAnthropic
Claude Opus 4.5
Best long-document analysis and agentic tool use discipline.
Score92
04APIxAI
Grok 4
Real-time X/web grounding; fast on fresh-news questions.
Score88
05Open weightsMeta
Llama 4 405B
Best self-hostable frontier option when data must stay in-house.
Score84