OpenRouter
nousresearch/hermes-3-llama-3.1-405b model retirement
Stopped workingSubscribe to OpenRouterShare
On November 2, 2026, the model nousresearch/hermes-3-llama-3.1-405b stopped working. Any requests sent to model nousresearch/hermes-3-llama-3.1-405b fail since that date. OpenRouter no longer serves this model.
The error you get
What OpenRouter answers a call to nousresearch/hermes-3-llama-3.1-405b once the model is gone, as recorded from real responses:
{"error":{"message":"No endpoints found for nousresearch/hermes-3-llama-3.1-405b.","code":404}}What to use instead of nousresearch/hermes-3-llama-3.1-405b
OpenRouter stops serving it, so move to another model it lists.
Facts
- API
- OpenRouter
openrouter.ai - Model
nousresearch/hermes-3-llama-3.1-405b- Released
- August 16, 2024 (models.dev)
- Kind
- Model retirement
- Takes effect
- November 2, 2026
- Calls after that day
- Fail
- Source
- Model list
- Last updated
- Verified
- , against OpenRouter's own pages
Questions
When does nousresearch/hermes-3-llama-3.1-405b shut down?
Calls to the model nousresearch/hermes-3-llama-3.1-405b on OpenRouter stopped working on November 2, 2026.
What happens to calls after November 2, 2026?
They have failed since November 2, 2026.
What error does nousresearch/hermes-3-llama-3.1-405b return once it is shut down?
OpenRouter answers HTTP 404: "No endpoints found for nousresearch/hermes-3-llama-3.1-405b.". Send another model to fix it.
When was nousresearch/hermes-3-llama-3.1-405b released?
nousresearch/hermes-3-llama-3.1-405b was released on August 16, 2024, according to models.dev.
How do I find the calls this hits in my code?
Okapi reads your repository, finds the calls this change hits and opens a pull request with the fix. It never commits to your branches: every change comes as a pull request you review.
nousresearch/hermes-3-llama-3.1-405b on other APIs 1
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DeepInfra
nousresearch/hermes-3-llama-3.1-405bModel retirement Stopped working
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You fixed this one by hand.
Okapi opens the pull request with the fix before the next breaking change reaches your code.