Svelte Coder 4B (v0.9.0)

A Svelte 5 / SvelteKit 2 specialist coding model โ€” 4B variant. Free to use under MIT. Built by rockypod on a homelab RTX 3090 Ti using continuous retrieval-augmented fine-tuning (RAFT) and a correction-stream methodology.

This is the 4B variant for edge hardware. For best benchmark results, use the 14B variant when the hardware allows.

14B (recommended) ยท 8B (mid-tier) ยท GitHub โ€” exam, integration guides, transparency

Benchmark

Instrument Score
30Q spot exam 79.3% (34.5 / 43.5 weighted)
204Q in-scope (rescored) 67.81% (131 / 190 raw)

For comparison, the 14B variant scores 100% / 70.11% on the same instruments. The 4B trades capability for accessibility on edge hardware. See the main README for the full two-exams discussion.

Hardware requirements

  • VRAM: ~3 GB (Q4_K_M GGUF), runs on entry-level GPUs and Apple Silicon devices with limited memory
  • Context length: 8192
  • Recommended use case: edge hardware where even the 8B variant is too large; iOS/Android via llama.cpp; constrained Linux servers

Files

  • svelte-coder-v0.9.0-4b-q4_k_m.gguf โ€” 4-bit quantized weights (~3 GB)

Usage

Ollama

ollama pull rockypod/svelte-coder:4b
ollama run rockypod/svelte-coder:4b "Write a Svelte 5 counter with $state and $derived"

LM Studio / llama.cpp

Download svelte-coder-v0.9.0-4b-q4_k_m.gguf and load with the production parameters: temperature 0.2, num_ctx 8192, num_predict 1500, repeat_penalty 1.5. Use the ChatML template:

<|im_start|>system
You are SvelteCoder, an expert Svelte 5 / SvelteKit 2 coding assistant. Answer the question with complete, production-quality code.<|im_end|>
<|im_start|>user
Your question<|im_end|>
<|im_start|>assistant
<think>

Limitations specific to the 4B

  • Svelte 4 echo trap is most frequent on this variant. The 4B has the least capacity to override Qwen3-4B's pretrained Svelte 4 reflexes. T1 (Runes) and T4 (WCAG/ARIA) fix-this-snippet questions show 1/3 pass rates on the 30Q spot. Review output for export let, on:click, <slot> patterns when modernizing Svelte 4 code, and prefer the 8B or 14B if Svelte 4 conversion is a primary use case.
  • Hard reasoning weaker than larger variants. T6 multi-step refactors are weaker on the 4B than on the 8B or 14B. Use the larger variants for architectural decisions or complex refactors.
  • All other limitations from the main README apply.

Apple Silicon note

MLX builds for Apple Silicon are not included in v0.9.0 for the 8B and 4B variants. Apple Silicon users are recommended to use the 14B variant, which includes MLX 4-bit weights.

License & Attribution

Fine-tuning work licensed under the MIT License โ€” see LICENSE in the GitHub repo.

Base model and teacher model are licensed under Apache 2.0 โ€” see LICENSE-APACHE and NOTICE:

The 4B Svelte Coder weights are a derivative work of Qwen3-4B, fine-tuned via LoRA adapters on the v1.5 Svelte 5 / SvelteKit 2 specialist dataset (1,508 entries).

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