---
base_model:
- Vortex5/Red-Synthesis-12B
- Retreatcost/KansenSakura-Erosion-RP-12b
- Vortex5/NoctyxCosma-12B
- Vortex5/Crimson-Twilight-12B
library_name: transformers
tags:
- mergekit
- merge
- roleplay
---
<section class="shell cosmic-theme">


  <div class="title-frame">
    <div class="title-block wide">
      <h2 class="hero-title">Starlit-Shadow-12B</h2>
    </div>

  <div class="image-slot inset">
      <img src="https://cdn-uploads.huggingface.co/production/uploads/6669a3a617b838fda45637b8/xkj2QnxaJLjkgl9rKN7Io.png">
    </div>
  </div>

  <div class="shadow-divider"></div>


  <section class="pane blended">
    <h2 class="pane-title">Overview<span class="underline"></span></h2>

  <p>
    <strong style="color:#fff">Starry-Shadow-12B</strong> was created through a
    <strong>multi-stage merge</strong> involving
    <a href="https://huggingface.co/Vortex5/Red-Synthesis-12B">Red-Synthesis-12B</a>,
    <a href="https://huggingface.co/Retreatcost/KansenSakura-Erosion-RP-12b">KansenSakura-Erosion-RP-12B</a>,
    <a href="https://huggingface.co/Vortex5/NoctyxCosma-12B">NoctyxCosma-12B</a>,
    and
    <a href="https://huggingface.co/Vortex5/Crimson-Twilight-12B">Crimson-Twilight-12B</a>,
  </p>


  <details class="expando">
      <summary>Multi-stage merge configuration</summary>
      <pre>
name: First
models:
  - model: Vortex5/Red-Synthesis-12B
merge_method: sm2f
base_model: Retreatcost/KansenSakura-Erosion-RP-12b
dtype: bfloat16
tokenizer:
  source: Retreatcost/KansenSakura-Erosion-RP-12b
---
name: Second
models:
  - model: Vortex5/NoctyxCosma-12B
merge_method: sm2f
base_model: Vortex5/Crimson-Twilight-12B
dtype: bfloat16
tokenizer:
  source: Vortex5/Crimson-Twilight-12B
---
models:
  - model: First
  - model: Second
merge_method: karcher
dtype: bfloat16
parameters:
  tol: 1e-9
  max_iter: 1000
tokenizer:
  source: Vortex5/Crimson-Twilight-12B
      </pre>
    </details>
  </section>

  <section class="pane blended">
    <h2 class="pane-title">Intended Use<span class="underline"></span></h2>

  <div class="tag-row">
      <div class="tagbox">🎭 Roleplay</div>
      <div class="tagbox">📜 Storytelling</div>
      <div class="tagbox">🌌 Creative Writing</div>
    </div>

  </section>

  <div class="shadow-divider"></div>

</section>

<style>

.shell.cosmic-theme {
  max-width: 1050px;
  margin: 40px auto;
  padding: 42px 26px;

  background: radial-gradient(
    circle at 50% 60%,
    #0b0b14 0%,
    #07070d 45%,
    #020205 100%
  );

  border: 3px solid rgba(255, 80, 120, 0.75);
  border-radius: 18px;

  box-shadow:
    0 0 60px rgba(0, 0, 0, 0.95),
    inset 0 0 60px rgba(0, 0, 0, 0.75);

  color: #f2f2f6;
  font-family: "Inter", system-ui, sans-serif;
}

.title-frame {
  text-align: center;
}

.title-block.wide {
  margin: 0 auto 22px;
  padding: 22px 0;

  background: linear-gradient(
    135deg,
    rgba(40, 10, 25, 0.95),
    rgba(25, 8, 18, 0.92),
    rgba(15, 5, 12, 0.90)
  );

  border: 3px solid rgba(255, 80, 120, 0.65);
  border-radius: 14px;

  box-shadow:
    0 0 22px rgba(255, 80, 120, 0.35),
    inset 0 0 30px rgba(255, 60, 110, 0.35);
}

.hero-title {
  margin: 0;
  font-family: "Cinzel Decorative", "Cinzel", serif;
  font-size: clamp(3rem, 5vw, 3.8rem);
  font-weight: 700;
  letter-spacing: 0.05em;

  color: #ff8ccf;

  text-shadow:
    0 0 10px rgba(255, 120, 190, 0.55),
    0 0 24px rgba(255, 80, 140, 0.45);
}

.image-slot img {
  width: 100%;
  max-width: 880px;

  border: 3px solid rgba(255, 100, 160, 0.85);
  border-radius: 10px;

  box-shadow:
    0 0 18px rgba(255, 100, 160, 0.45),
    inset 0 0 10px rgba(255, 80, 120, 0.35);
}

.shadow-divider {
  width: 92%;
  height: 10px;
  margin: 36px auto;

  background: linear-gradient(
    to right,
    rgba(255, 120, 180, 0.95),
    rgba(90, 30, 60, 0.85),
    rgba(255, 120, 180, 0.95)
  );

  clip-path: polygon(
    0% 50%,
    5% 0%,
    95% 0%,
    100% 50%,
    95% 100%,
    5% 100%
  );

  box-shadow:
    0 0 18px rgba(255, 120, 180, 0.55);
}

.pane {
  margin: 28px 0;
  padding: 28px;

  border-radius: 8px;
  border: 3px solid rgba(255, 90, 140, 0.7);

  background: linear-gradient(
    145deg,
    rgba(30, 8, 20, 0.92),
    rgba(18, 6, 14, 0.88),
    rgba(12, 4, 10, 0.82)
  );

  box-shadow:
    0 0 22px rgba(255, 90, 140, 0.25),
    inset 0 0 28px rgba(255, 70, 120, 0.35);
}

.pane-title {
  font-family: "Cinzel Decorative", serif;
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: 0.04em;

  color: #ff9fdc;

  text-shadow:
    0 0 12px rgba(255, 140, 200, 0.55),
    0 0 28px rgba(255, 90, 150, 0.45);

  padding-bottom: 14px;
  position: relative;
}

.pane-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;

  background: linear-gradient(
    to right,
    rgba(255, 150, 210, 0.95),
    rgba(0, 0, 0, 0)
  );
}

.tag-row {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin: 14px 0;
}

.tagbox {
  padding: 10px 18px;
  font-size: 1.15rem;

  background: rgba(20, 8, 14, 0.85);
  border: 2px solid rgba(255, 120, 180, 0.65);
  border-radius: 10px;

  box-shadow:
    0 0 12px rgba(255, 120, 180, 0.35);
}

details.expando {
  margin-top: 16px;
  background: rgba(10, 4, 8, 0.85);
  border: 2px solid rgba(255, 100, 160, 0.45);
}

details summary {
  padding: 12px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.85rem;
  cursor: pointer;
}

pre {
  background: rgba(6, 2, 4, 0.85);
  color: #ffd6ef;
  padding: 18px;
  overflow-x: auto;
}
</style>