Cyclone-Labs/Eclipsed-Phoenix-26B-A4B

VISIONPricing:Input $0.4 / Cached $0.08 / Output $0.8Concurrent Unit Cost:2Model Size:26BQuant:FP8Context Size:32kTool Calling:SupportedPublished:Sep 5, 2026License:apache-2.0Architecture:Transformer0.0K Open Weights Featherless Exclusive Cold

Eclipsed-Phoenix-26B-A4B by Cyclone-Labs is a 26 billion parameter experimental rework of the Phoenix-X model, featuring a custom script that iteratively refines its final four MoE expert layers. This process results in a model with substantially different generation characteristics, including more stylized prose, stronger subtext, and less predictable narrative choices. It is specifically optimized for creative writing, roleplay, and long-form storytelling applications.

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Overview

Eclipsed-Phoenix-26B-A4B is a 26 billion parameter experimental model developed by Cyclone-Labs. It is an iterative rework of the Phoenix-X foundation, utilizing a custom script to make small, structured changes to the final four Mixture-of-Experts (MoE) expert layers. This unique modification process involves testing multiple versions against the original and retaining the strongest result, which significantly alters token selection in later layers.

Key Characteristics

  • Altered Prose and Tone: The model exhibits a distinct shift in prose, tone, personality, and response style compared to its Phoenix-X base.
  • Stylized Generations: In testing, Eclipsed-Phoenix consistently produced more stylized prose and stronger subtext.
  • Unpredictable Narratives: It tends to make less predictable narrative choices and is more willing to explore darker or more ambiguous directions.

Good For

  • Roleplay: Excels in character-driven interaction, developing personas, dialogue, and long-form scenes.
  • Creative Writing: Ideal for generating fiction, crafting atmosphere, detailed descriptions, and stylistic drafting.
  • Storytelling: Supports long-form narratives, worldbuilding, maintaining continuity, and multi-character plots.
  • Interactive Fiction: Suitable for branching narratives, dynamic character interaction, scenario play, and evolving stories.