1X NEO

NeoHorse is TokenRhythm's family of open-weight causal language models for text-based agent workflows, including tool use, coding, and instruction following. NeoHorse-1 uses routing-guided agentic post-training: a harness assigns tasks to a heterogeneous model pool, records tool interactions and outcomes, estimates capability demand, and feeds capability-level feedback into later training mixtures. Updated models can return to the harness in an evaluation-selection-update loop intended as a prototype for recursive self-improvement. NeoHorse-1 is released in approximately 4B and 9B parameter variants, post-trained from Qwen3.5 models, with text input and text output interfaces and deployment examples for vLLM and SGLang. The related NeoHorse-Jev-4B model uses prefill-only inference to return structured Choice, Noul, and Score decisions and probabilities for routing requests, selecting tools, or controlling workflows. The models are released under the Apache License 2.0.

Figure is an AI robotics company that develops a general-purpose humanoid robot. The company states its goal is to build an AI-driven humanoid capable of performing a range of physical tasks.

Grok is an AI conversational assistant developed by xAI, the company founded by Elon Musk. It is offered as a chat model integrated with the X platform and designed for open-ended dialogue and real-time web-aware responses. The name has been used with variant version labels for model updates.

Anthropic is an AI research and deployment company founded by former OpenAI researchers (including Dario Amodei). It develops large language models such as Claude and focuses on AI safety research and commercial model deployments.