# Two weeks later, the field arrived.

TypeSafe launched Jev on 2026-09-15. Two weeks later, the field had moved on four fronts.

Liquid released d1 on 2026-09-29. Liquid calls it the first decision foundation model, and Liquid AI is a spin-off from MIT. d1 speaks the System One API, so ThinkThen runs on it. See [Liquid d1](/install/backends/liquid/).

Ollama 0.35 shipped on 2026-09-30. It serves the nimble and tev1 models on your own machine through the same API. See [Ollama](/install/backends/ollama/).

On 2026-09-30, Benchmark Heaven's JevBench board ranked 106 systems. Three days earlier it listed 62 open models. Cygnet tops its composite score, and Jev is third.

OpenAI announced a Decisions API at DevDay on 2026-09-29. Its model, Luna, answers questions a developer defines, from a fixed set of answers, over text or images. See [OpenAI Decisions API](/install/backends/openai/).

The slide's last line names the aim: ThinkThen is one SDK for every decision API.

The numbers come from [Ollama's announcement](https://ollama.com/blog/ollama-now-supports-jev-style-decision-models), [the JevBench board](https://www.benchmarkheaven.com/jev-models/v1.5.4) and [OpenAI's DevDay 2026 recap](https://openai.com/index/devday-2026-recap/).

Decision models now come from more than one maker, and one interface reaches them.

On GitHub: [github.com/botassembly/beatles-bench](https://github.com/botassembly/beatles-bench)