APIs & Platforms
Batch API
OpenRouter launches a batch API
OpenRouter added a batch API for submitting large asynchronous request jobs.
OpenRouter AI Releases: Batch API, Union Alpha & Fusion API
ThursdAI — the weekly AI news podcast hosted by Alex Volkov — has covered 4 OpenRouter releases since Jul 2025, most recently Batch API on Sep 24, 2026. Highlights include Union Alpha, Cypher Alpha, Fusion API, Batch API. Every entry below has the episode segment where we covered it live, plus primary-source links and key numbers where we have them.
4 releases4 episodesJul 2025 – Sep 2026
September 2026 2
New Models
Union Alpha
Union Alpha: anonymous stealth model free on OpenRouter with 262K context
A new anonymous stealth model called Union Alpha appeared for free on OpenRouter with a 262K context window, processing over 100B tokens within hours of listing. The community's leading guess for the lab behind it is Z.ai, but the provider remains unconfirmed.
262K context window100B+ tokens processed within hours
June 2026 1
APIs & Platforms
Fusion API
OpenRouter launches Fusion API, a panel of budget models competing with frontier models
OpenRouter launched Fusion API, which routes or ensembles a panel of lower-cost models to reach near-frontier results. The episode notes framed it as beating GPT-5.5 and Opus 4.8 in some comparisons while landing within roughly 1% of Claude Fable 5 at half the price.
~1% from Fable 5 in episode notes
July 2025 1
New Models
Cypher Alpha
Mystery 1M-context model 'Cypher Alpha' appears free on OpenRouter
A stealth model called Cypher Alpha showed up on OpenRouter with a free 1M-token context window, with the panel speculating it could be Amazon Titan. Alex used it as an example of how model releases increasingly arrive as anonymous market probes rather than tidy launches.
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