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Aion 3.5 aion-labs
Release timeline
Stages observed by the nightly radar: announced → API only → weights public → served by third parties. Each entry carries the source it was seen at.
- 2026-09-23 · API only source seeded from the earliest dated observation when first seen · observed 2026-10-07 20:20 UTC
- next · Next expected: additional third-party providers (closed weights; none expected on Hugging Face)
Description
Aion 3.5 is a multi-model roleplaying and storytelling system from AionLabs, built on the GLM family of models. It uses a collaborative generation process in which multiple specialized models each...
via OpenRouter listing · observed 2026-10-24 21:26 UTC. The listing text is the provider's own description, not an assessment.
Where to run 1 providers · 1 endpoints
Hosted endpoints observed for Aion 3.5, sorted by input price (USD per million tokens). Each row names its observer and date; prices change daily, so check the source before quoting. Cheapest observed input price: $3.00/M.
| Provider | Model ref | Context | Quant | $/M in | $/M out | tok/s | TTFT | Tools | Status | Observed |
|---|---|---|---|---|---|---|---|---|---|---|
| AionLabs openrouter | aion-labs/aion-3.5 | 256K | unknown | $3.00 | $6.00 | — | — | yes | live | 2026-10-24 |
No third-party providers observed beyond the lab's own endpoints. Cache-read price $0.75/M (source, observed 2026-10-24).
Facts
| Context length | 262,144 tokens (256K) · OpenRouter listing |
|---|---|
| Modalities | text → text |
| Max completion tokens | 32,768 |
| Supported parameters | include_reasoning, max_tokens, reasoning, reasoning_effort, response_format, temperature, tool_choice, tools, top_p |
| Openness | Closed weights · closed lab |
| Stage | API only |
| Confidence | medium |
| Pricing (USD per M tokens) |
in $3.00 · out $6.00 · cache read $0.75 OpenRouter list price (cheapest live endpoint) · source · observed 2026-10-24 21:26 UTC |
Open alternatives 5
Nearest open-weights models by modality, context and price on this watch list. Not a quality ranking.
| Model | Org | Params | Context | $/M in | License | Why it is here |
|---|---|---|---|---|---|---|
| Meta-Llama-3-8B-Instruct | meta-llama | 8.03B | — | — | llama3 | closest by rank, context and price |
| Llama-3.1-8B | meta-llama | 8.03B | — | — | llama3.1 | closest by rank, context and price |
| DeepSeek-R1 | deepseek-ai | 684B | 160K | $0.70 | mit | cheaper input price ($0.7/M vs $3/M) |
| Meta-Llama-3-8B | meta-llama | 8.03B | — | — | llama3 | closest by rank, context and price |
| Llama-2-13b-chat-hf | meta-llama | 13.0B | — | — | llama2 | closest by rank, context and price |
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Watch the release radar
- /feeds/upcoming.xml(RSS 2.0) · upcoming and just-released models, one item per entry
- /feeds/upcoming.json(JSON Feed 1.1) · same, JSON Feed 1.1
Email alerts are not open yet; the feeds above are the same data. See feeds for the item schema.
Sources
- openrouter aion-labs/aion-3.5 · observed 2026-10-24 21:26 UTC
Radar run: 2026-10-25 06:51 UTC · Last verified 2026-10-25 06:51 UTC