Hermes 4 405B

Overview

Hermes 4 is a large-scale reasoning model built on Meta-Llama-3.1-405B and released by Nous Research. It introduces a hybrid reasoning mode, where the model can choose to deliberate internally with... Hermes 4 405B is served through the PARROTSIGHT unified API at Nous Research's list price, with the same authentication, metering and regional pinning (MY / SG / ID) as every native model. No separate provider account is required.

• 131K token context
• OpenAI-compatible endpoint — migrate with a two-line change
• Streaming (SSE) supported for all text outputs
• Billed at provider list price, metered per token

Capabilities

API

curl -X POST https://api.parrotsight.com/v1/chat/completions \
  -H "Authorization: Bearer $PS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"nousresearch/hermes-4-405b","messages":[{"role":"system","content":"You are a concise bilingual assistant."},{"role":"user","content":"Summarise this quarter's platform metrics in Malay and English."}],"stream":true}'

Version history

1. v2025.8Latest2025-08-26

   Added to the PARROTSIGHT catalogue at Nous Research list pricing.