AionLabs / aion-labs/aion-3.5

AionLabs: Aion 3.5 - access through LLMTR

Aion 3.5 is an AionLabs model built as a GLM-family multi-model system, positioned for long conversations, character consistency, tension building, and branching narrative flows. It offers twice the context window of Aion 3.0 at the same price, which suits roleplay and interactive fiction products that carry long chat histories. It supports a 256K context window and cache-read pricing. Reasoning cannot be disabled; `reasoning_effort` accepts only low, high (default), and max. Use `stream: true` for long-context or long-output requests.

Technical specifications

Canonical IDaion-labs/aion-3.5
ProviderAionLabs
Context window262,144 tokens
OperationsCHAT_COMPLETIONS
Modalitiestext

Pricing

An 8% platform margin applies to credit top-ups; model usage prices are not separately marked up.

OperationMetricUnitPrice
CHAT_COMPLETIONSINPUT_TEXTPER_1M_TOKENS$3.00
CHAT_COMPLETIONSCACHE_READPER_1M_TOKENS$0.750000
CHAT_COMPLETIONSOUTPUT_TEXTPER_1M_TOKENS$6.00

Example usage

With existing OpenAI SDK flows, change only the base URL and model identifier.

curl https://llmtr.com/v1/chat/completions   -H "Authorization: Bearer llmtr-your_key"   -H "Content-Type: application/json"   -d '{"model":"aion-labs/aion-3.5","messages":[{"role":"user","content":"Hello"}]}'

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