Ant Group's inclusionAI launches Ling 3.1 Flash, a 560B-parameter MoE, as a free trial with open weights promised
Around Sept 29–30, 2026 Ant Group's AI unit inclusionAI released Ling 3.1 Flash, a hybrid-reasoning mixture-of-experts model with 560B total and 25B active parameters, aimed at coding, agents and tool use. It launched as a two-week free trial (256K context) on gateways such as Vercel AI Gateway and, from Oct 2, OpenRouter. inclusionAI said it will enable a ~1M-token context and open-source the model after the trial. No weights or third-party benchmarks were public at launch.
Key facts
- 560B total / 25B active parameters, hybrid reasoning MoE (reasoning on by default on OpenRouter), text in/text out
- Trial: 262,144-token context, 32,768 max output; free on Vercel AI Gateway through Oct 13, 2026 (release date listed 09/29/2026) and free on OpenRouter (listed Oct 2, 2026) as inclusionai/ling-3.1-flash
- inclusionAI 'plans to enable the larger window [up to ~1M tokens] and release the model as open source after the trial' (per TechNode via AI Weekly)
- No Hugging Face repo, license or independent evaluation at launch; vendor showed benchmark screenshots only
- Predecessors on Vercel: Ling 3.0 Flash (Aug 6, 2026), Ling 3.0 Flash VL (Sept 8) and finance/healthcare variants
What happened
inclusionAI, Ant Group's foundation-model unit, released Ling 3.1 Flash, a large sparse MoE model built for agentic coding, multi-step analysis and tool-using workflows. It launched as a free two-week trial through third-party gateways rather than as an open-weight release. The company said it would open-source the model after the trial. Exact launch date is uncertain between Sept 29 (Vercel listing) and Sept 30 (TechNode report).
Why it matters
At 560B total parameters it is on the scale of StepFun's 600B Step 5 Preview, and it follows the same "API or trial first, weights later" pattern is now shared by several Chinese labs. Until the weights and outside evaluations appear, its capabilities are only vendor claims.
Changelog
- 2026-10-02: created (found via OpenRouter's new-model list and AI Weekly).
Models
- Ling 3.1 Flash inclusionAI (Ant Group) · preview
Sources (4)
- pressTechNode: Ant Group launches Ling-3.1-flash with 560 billion parameters
- pressAI Weekly: Ant's InclusionAI ships Ling-3.1-flash with 560B parameters
- docsOpenRouter: inclusionAI Ling 3.1 Flash
- docsVercel AI Gateway: Ling 3.1 Flash
id: 2026-09-29-ant-inclusionai-ling-3-1-flash · updated 2026-10-02 · open in the interactive timeline