Hermes 3 405B Instruct

In one line

Hermes 3 405B Instruct by Nous, measured by Artificial Analysis at 7.4 on the Intelligence Index. Added to WhichAI automatically from live data on October 13, 2026: no editorial review yet, so judge it by the numbers, not by a verdict. OpenRouter's description: “Hermes 3 is a generalist language model with many improvements over Hermes 2, including advanced agentic capabilities, much better roleplaying, reasoning, multi-turn conversation, long context...”

Alternatives worth a look

• Qwen3 VL 8B Instruct (Alibaba) · AA 7.3API $0.25/$0.75 per 1M tokens on OpenRouter · open weights · listed October 14, 2025
• Perplexity Sonar Pro + Deep Research (Perplexity AI) · AA 7.6Perplexity Pro $20/mo (includes GPT, Claude and Gemini flagships inside)
• Perplexity Sonar (Perplexity AI) · AA 7.7FREE: unlimited basic cited searches + 5 Pro searches/day

Artificial Analysis Intelligence Index, official scale (the number published on artificialanalysis.ai), relayed by OpenRouter and refreshed automatically: last read October 13, 2026. 210 models carry a current official measurement. A value marked ~ is converted from an earlier snapshot because no current measurement is published; an unmeasured model is never ranked. Context, price, modality and listing dates come from the public OpenRouter model list (refreshed automatically on the live site; static copy retrieved October 3, 2026) and vendor pages. Missing values are not published or not yet verified - shown as -. Sources are linked inside the app (the Ranking chapter and About > Methodology).