Models · AionLabs · Out sinceReleased 23 Sep 2026
Aion 3.5
Aion 3.5 is made by AionLabs. We don't have enough test results yet to rank it. It's mid-priced to use.
Minimal entry from OpenRouter catalog (created date = OpenRouter listing date). Roleplay/creative-writing focused model; appears on EQ-Bench Creative Writing v3 as aion-3.5.
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- Mid-priced$3 / $6
- $3.75
- 262K
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- 1 (1 independent1 indep.)
- 23 Sep 2026
- AionLabs
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Scores are out of 100 for each area, compared with every model we track; “#” is its rank. Context is how much text it can read at once (1M is roughly 700,000 words). Blended price mixes the cost of what you send and what it writes back.
You can't choose how long this one thinks.
No adjustable reasoning setting listed.
OpenRouter is a service that gives access to many AI models in one place. This model is listed there as aion-labs/aion-3.5.
Route it as aion-labs/aion-3.5 at $3 in / $6 out per 1M tokens, 262K context. Listed since 23 Sep 2026.
include_reasoningmax_tokensreasoningreasoning_effortresponse_formattemperaturetool_choicetoolstop_p
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| NotesNotes | ||||||
|---|---|---|---|---|---|---|
| EQ-Bench Creative Writing v3 (Elo) | 1929 | Default*aion-3.5 | Independent testIndependentEQ-Bench ↗ | 1 Oct 2026 | — | leaderboard rank 12; rubric score 16.73/20; slop 10.26; avg length 6499 chars; Elo judged by Claude Sonnet 4.6; effort not stated by EQ-Bench; marked new (*) |