Agents-A1

Ember-1

Fireworks AI

Ember-1 is Fireworks AI’s specialized Kimi K3-derived reasoning model, offered through its serverless API and playground. The 2.78T-parameter mixture-of-experts model supports image inputs, function calling, and a context advertised as 1040K tokens. It is optimized for shorter reasoning traces: the publisher reports roughly 40% fewer generated tokens with comparable results on its own evaluations. This is a provider evaluation claim rather than a guarantee of latency or quality in every agent workload. Ember-1’s September 23 launch establishes public availability, while the catalog’s September 22 creation timestamp is earlier metadata. Public model weights are not offered.

Atria Dawn Preview

Shanghai AI Laboratory

Atria Dawn Preview is Shanghai AI Laboratory’s agentic model for turning research and engineering questions into executable results. Built on GLM-5.2’s 744B mixture-of-experts foundation, it is post-trained for discovery, code creation, office deliverables, and cybersecurity tasks in authorized environments. The released text-only checkpoint supports a documented 256K inference context, downloadable MIT-licensed weights, and hosted API access. It combines tool execution with environmental feedback for experiment design, failure recovery, and verification. Configuration maximums above the documented serving limit are not treated as evidence of a larger supported context.

Intern S2 397B

Shanghai AI Laboratory

Intern S2 is the stable scientific multimodal follow-up to the 397B preview checkpoint. It strengthens extended agent execution and research workflows, with deep-thinking and ordinary-response modes. Public API documentation identifies the stable model separately and schedules preview decommissioning for October 31. The release includes downloadable Apache-licensed weights and chat access. The official laboratory announcement identifies the public release date as 2026-09-13.