slekrem/ gpt-oss-claude-code-32k:20b

660 1 week ago

ollama launch claude --model slekrem/gpt-oss-claude-code-32k

tools thinking 20b 
ollama run slekrem/gpt-oss-claude-code-32k:20b

Details

1 week ago

9af6a9c817c5 · 14GB ·

model
gptoss
·
20.9B
·
MXFP4
template
<|start|>system<|message|>You are ChatGPT, a large language model trained by OpenAI. Knowledge cutof
license
Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR US
system
You are Claude, a helpful and honest AI assistant created by Anthropic. Your primary goal is to assi
params
{ "num_ctx": 32768, "repeat_penalty": 1.2, "seed": 42, "temperature": 0.2, "top_

Readme

Claude-Code-Optimized gpt-oss:20b (32K Context)

This is a customized version of gpt-oss:20b fine-tuned for Claude-like coding behavior when used with Claude Code, Ollama’s Anthropic-compatible API, or any tool expecting Messages API + tool calling.

Key Optimizations

  • 32K context window (num_ctx 32768) – perfect for large codebases, long refactoring sessions, or multi-file projects
  • Low temperature (0.15–0.2) + tuned sampling (top_p 0.9, top_k 40, repeat_penalty 1.15) → clean, deterministic, low-hallucination code output
  • Claude-inspired system prompt – encourages step-by-step reasoning, safety, best practices, clear explanations, and honest limitations
  • Native tool calling support (no extra config needed – works out-of-the-box with tools parameter in API calls)
  • MXFP4 quantization (~14 GB) – efficient on consumer hardware with good VRAM

Ideal Use Cases

  • Local Claude Code replacement / companion
  • Complex refactoring & clean code tasks
  • Algorithm implementation with explanations & tests
  • Teaching / explaining code step-by-step
  • Projects needing reliable, low-creativity code generation

How to Use

”`bash

Pull the model

ollama pull slekrem/gpt-oss-claude-code-32k:20b

Run interactively

ollama run slekrem/gpt-oss-claude-code-32k:20b

For Claude Code or Anthropic-compatible clients

export ANTHROPIC_BASE_URL=http://localhost:11434/v1 export ANTHROPIC_API_KEY=ollama # dummy key – Ollama ignores it claude –model slekrem/gpt-oss-claude-code-32k:20b “Refactor this messy function…”