gpt-6-luna API — Hermes AI API

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Usage and charge appear here after a reply.

About this model

gpt-6-luna is served through the Hermes AI OpenAI-compatible chat completions endpoint. Send the standard messages array; streaming, function tools, JSON output and reasoning settings pass through unchanged. You pay per token from prepaid credits, at the rates on the Pricing tab.

Property	Valeur
Model id	`openai/gpt-6-luna`
Vendor	OpenAI
Context window	1,050,000 tokens
Capacités	Outils, Vision, Reasoning, Streaming
Point de terminaison	`https://api.hermes-ai.net/api/v1/chat/completions`
Prix Hermes AI	Chargement du prix…

Request

POST https://api.hermes-ai.net/api/v1/chat/completions · API key with the chat:create scope, or your signed-in session.

Champ	Type	Remarques
model	string	`openai/gpt-6-luna`
messages	array	OpenAI chat messages: system, user, assistant and tool roles; text and image_url parts.
stream	boolean	Server-sent events with a final usage chunk.
max_tokens	integer	Output cap; also sizes the credit reservation.
tools / tool_choice	array / object	Function tools only.
response_format	object	JSON mode and JSON schema where the model supports it.
temperature, top_p, stop, seed, reasoning_effort		Passed through unchanged.

Réponse

Champ	Remarques
choices[].message / delta	The OpenAI chat completion shape.
usage	prompt_tokens, completion_tokens and prompt_tokens_details.cached_tokens as reported by the model.
hermes.charged_micros	Exact charge in USD micro-units (JSON responses). Streams expose it on GET /api/v1/chat/requests.
x-hermes-request	Request id header, also used in the billing ledger.
error.code	Documented Hermes error code; branch on it, not on the message.

Token prices

USD per 1M tokens. The tier is chosen by the prompt size of each request.

Chargement du prix…

How token billing works

When a request is accepted, Hermes reserves credits for the estimated prompt plus max_tokens of output (8,192 when you set none). Set max_tokens to keep the reservation small.
When the response finishes, the reservation is replaced by the exact charge from the usage the model reports: prompt tokens at the input rate, cached prompt tokens at the cache-read rate, completion tokens at the output rate. The remainder is released immediately.
If the model rejects the request nothing is charged. If a stream is interrupted after tokens were generated, the generated text is estimated and charged.

Exemples de code

Any OpenAI SDK works: set the base URL and your Hermes key.

shell

export HERMES_API_KEY=your_api_key

curl https://api.hermes-ai.net/api/v1/chat/completions \
  -H "Authorization: Bearer $HERMES_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-6-luna",
    "messages": [{"role": "user", "content": "Say hello in one sentence."}],
    "max_tokens": 200
  }'