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Blended $/1M across tracked versions of this line.
Typical 3:1 output-to-input mix, per 1M tokens
Price as of 2026-05-11 · Source: aion_labs_reference_catalog
General-purpose text generation, chat, summarization and content workloads where broad capability and low cost matter most.
Aion Labs lists Aion 2.5 as the latest Aion model with reduced response time and improved writing quality.
aion-2.5-api is a Text model from Aion Labs (US). HotON.ai tracks it at $1.00 per 1M input tokens and $3.00 per 1M output tokens, with a 131K-token context window. Its composite efficiency score is 88/100 at an estimated $0.004 per successful task.
aion-2.5-api is tracked at $1.00 per 1M input tokens and $3.00 per 1M output tokens. A typical 3:1 output-to-input workload blends to roughly $2.50 per 1M tokens. Figures are illustrative demo data.
General-purpose text generation, chat, summarization and content workloads where broad capability and low cost matter most.
aion-2.5-api supports up to a 131K-token context window — large enough for long documents and extended conversations in a single request.
Within the HotON.ai tracked set, aion-2.5-api is cheaper than 28% of models on input price and ranks #298 of 535 by overall efficiency.
Yes — minimax-m2.7 is a lower-cost option at $1.20 per 1M output tokens, while still covering similar Text use cases. Compare them side by side on HotON.ai.
Ready to paste into articles, papers or AI prompts — prices and date refresh with the live data.
HotON.ai — aion-2.5-api (Aion Labs): $1.00/1M input, $3.00/1M output, as of 2026-05-11. https://hoton.ai/en/models/aion-labs-aion-2-5-apiPricing is real (via the TestKey catalog, updated daily). Quality (Arena Elo) is real where the model is ranked on LMArena. Efficiency is a modeled composite of real price and context.