Hermes 4 405B by OpenRouter | AI model information

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Model details

Hermes 4 405B

OpenRouternousresearch/hermes-4-405bhermes

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Quick Info

Provider: OpenRouter
Model key: nousresearch/hermes-4-405b
Release date: Aug 26, 2025

Cost

Input token cost: $1.00
Output token cost: $3.00

Limits

Output tokens: 131,072 tokens
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Videos about Hermes 4 405B

Recent tweets and retweets from OpenRouter

Jul 16, 2026, 5:16 PMUTC

Good thing we just landed on @OpenRouter

Jul 16, 2026, 12:32 PMUTC

At @sentry we just started to adopt @OpenRouter so I quickly wiped together a @pidotdev extension that exposes their most useful server tools as Pi tools. Took ~15mins to have this for idea to finished repo, Pi is king github.com/HazAT/pi-openrout… Link GitHub -…

Jul 16, 2026, 6:11 PMUTC

New and exciting model family on @OpenRouter: Muse Spark, from Meta! We want to make sure that many choices for AGI surface in the market, not just one. Things to try: 1. Ask the OpenRouter MCP where in your codebase you should try it 2. Use it in the chatroom:…

Jul 16, 2026, 5:15 PMUTC

A lot of people asked for this, so Muse Spark 1.1 is now on OpenRouter.

Jul 16, 2026, 5:15 PMUTC

Muse Spark 1.1 is available now on OpenRouter for US-based developers. openrouter.ai/meta/muse-spar… Link Muse Spark 1.1 - API Pricing & Providers Muse Spark 1.1 is a multimodal reasoning model from Meta, built for agentic tasks. $1.25 per million input tokens, $4.25 per…