Cyclone-Labs/Starlight-Synthesis-31B

VISIONPricing:Input $0.48 / Cached $0.1 / Output $1.44Concurrent Unit Cost:2Model Size:31BQuant:FP8Context Size:32kTool Calling:SupportedPublished:Sep 9, 2026License:apache-2.0Architecture:Transformer0.0K Open Weights Featherless Exclusive Cold

Starlight-Synthesis-31B is a 31 billion parameter language model developed by Cyclone-Labs, created by merging google/gemma-4-31B-it with several other 31B models using a custom merge method. This model is specifically optimized for creative applications, excelling in roleplay, creative writing, storytelling, and interactive fiction. Its unique composition targets nuanced character interaction, descriptive prose, and long-form narrative generation.

Loading preview...

Overview

Starlight-Synthesis-31B is a 31 billion parameter language model developed by Cyclone-Labs. It was created through a custom merge of google/gemma-4-31B-it with several other 31B models, including Cyclone-Labs/Eon-Blossom-31B, Cyclone-Labs/Solar-Dawn-31B, Cyclone-Labs/Starless-Seraph-31B, Cyclone-Labs/Twisted-Cyclone-31B, and Vortex5/Glimmering-Citrus-31B. The merge utilized an fcgs method with specific parameters for gain, resolution, declone, and anchor, and uses a union tokenizer.

Key Capabilities

  • Character-driven interaction: Excels at generating dialogue and emotional scenes with distinct personas.
  • Imaginative prose: Optimized for descriptive writing, stylistic drafting, and creative storytelling.
  • Long-form narrative generation: Capable of maintaining continuity, evolving characters, and managing multi-character plots.
  • Branching narratives: Supports interactive fiction and scenario play with continuously evolving stories.

Good For

  • Roleplay: Ideal for detailed, character-focused interactions.
  • Creative Writing: Suitable for fiction, dialogue, and atmospheric descriptions.
  • Storytelling: Excellent for worldbuilding and developing complex narratives.
  • Interactive Fiction: Designed for dynamic, evolving story experiences.