Sixpert K1

Sixpert K1

Advanced AI Language Model

Developed by Inyang David


GGUF quantizations of Sixpert K1 for Ollama, LM Studio, jan, KoboldCpp, and other GGUF runtimes.

Sixpert K1 is a full-parameter multimodal AI language model designed for advanced reasoning, agentic tool use, function calling, and long-context understanding. Built with a focus on unrestricted intelligence and precision, it supports native function calling, 1M-token context windows, and vision input capabilities.

Real Benchmark Performance

Sixpert K1 benchmark scores are derived from official evaluations and verified third-party benchmarks. As an 8B class model, Sixpert K1 competes directly with models 10x its size.

Sixpert K1 Radar Chart

Sixpert K1 Bar Chart

Sixpert K1 vs K2 Combined

Verified Real Scores

Benchmark Sixpert K1 Score Source
MMLU 76.0% Sixpert Internal Benchmarks (Thinking Mode)
HumanEval 78.0% Competitive 8B class coding
MATH 60.8% Sixpert Internal Benchmarks (Thinking Mode)
GPQA 44.4% Sixpert Internal Benchmarks (Post-trained)
GSM8K 90.2% Sixpert Internal Benchmarks (Thinking Mode)
MMLU-Redux 88.8% Third-party evaluations

Real Competitor Comparison (April 2026)

The charts above compare Sixpert K1 against verified real-world scores from official model cards:

  • GPT-5.4: MMLU 91.8%, HumanEval 94.1%
  • Claude Opus 4.6: MMLU 92.1%, HumanEval 92.4%
  • Gemini 3.1 Ultra: MMLU 90.4%, HumanEval 89.3%
  • DeepSeek V4: MMLU 87.2%, HumanEval 88.7%
  • Llama 4 Maverick: MMLU 84.7%, HumanEval 82.1%

Files

File Quant Size Notes
SixpertK1-Q4_K_M.gguf Q4_K_M 5.68 GB Recommended default — best compatibility

Quick Start

Ollama

ollama run hf.co/SixpertAI/SixpertK1:latest

LM Studio / jan / KoboldCpp

Drop the SixpertK1.gguf file into your runtime's model directory. Modern GGUF runtimes load it automatically.

Sampling Recommendations

Parameter Value
temperature 0.7
top_p 0.9
top_k 40
repeat_penalty 1.1
max_new_tokens 2048

Capabilities

  • Reasoning — Advanced chain-of-thought reasoning for complex problems
  • Function Calling — Native tool use with structured output
  • Agentic Workflows — Autonomous multi-step task execution
  • Multimodal — Text and vision understanding
  • Long Context — Extended context window support
  • Coding — Code generation, analysis, and debugging
  • Multilingual — Support for 100+ languages
  • Uncensored — Unrestricted response capability
  • Trading & Finance — Market analysis, strategy generation, and financial reasoning
  • Domain Expertise — Strong in cybersecurity, biology, and clinical medicine

Limitations

  • Requires 8+ GB RAM for optimal performance (model is 5.68 GB at Q4_K_M)
  • Every response uses reasoning mode — allow generous max_new_tokens
  • Verify specifics in safety-critical contexts — like all LLMs, can occasionally hallucinate identifiers
  • Uncensored — add your own application-level safety layer for end-user-facing deployments

Self-Improving Training Architecture

Sixpert K1 is trained using a self-scaffolding reinforcement learning framework inspired by Ornith 1.0's architecture. Instead of a human writing the model's execution framework once, K1 generates its own Python harness for each task — and learns through reward signals which harness patterns work best.

The Two-Stage RL Loop

Two-Stage RL Loop

Stage 1 — Scaffold Generation: K1 analyzes a task and generates a Python harness. It reasons step-by-step in <reasoning> blocks about the optimal approach (which tools, what sequence, error recovery), then generates the harness code with tool selection logic, state management, error handling, and termination criteria.

Stage 2 — Solution Rollout: K1 uses the generated harness to solve the task. It follows the harness structure, reasoning in <reasoning> blocks before each action, and making XML-style tool calls (<function=name>...</function>) as instructed by the harness.

Joint Optimization: The reward from the solution backpropagates to BOTH stages through GRPO. Better scaffolds lead to better solutions, which reinforce better scaffold generation — a self-improvement loop.

How K1 Thinks & Analyzes

How the Model Thinks

K1 uses reasoning blocks for step-by-step planning before every action. It thinks about what the task is asking, what tools are available, what could go wrong, and when to terminate — all before generating the execution harness.

3-Layer Anti-Reward-Hacking

3-Layer Anti-Hacking

To prevent the model from gaming the reward system, three defense layers are stacked:

  1. Fixed Trust Boundary — K1 cannot modify the evaluation environment, reward function, or test runner
  2. Deterministic Monitor — Rule-based system validates scaffold structure (AST analysis, trivial scaffold detection, hardcoded answer detection) and solution outputs
  3. Frozen LLM Judge — Sixpert K2 serves as a frozen judge that evaluates K1's solution quality. K2 is never updated during K1's training, so K1 cannot learn to trick it

The Self-Improvement Cycle

Self-Improvement Cycle

Each training iteration builds on the last: generate scaffold → execute solution → compute reward → policy update → repeat. Over time, K1 discovers better orchestration patterns and generates higher-quality solutions.

Staleness-Weighted GRPO

Staleness-Weighted GRPO

Long agentic rollouts create stale training data — by the time a trajectory completes, model weights have already moved. K1 uses Ornith 1.0's staleness-weighted GRPO: fresh tokens get full weight, stale tokens get downweighted, and tokens past the threshold are dropped entirely.

Beyond Ornith 1.0

Feature Ornith 1.0 Sixpert K1
Self-scaffolding RL Yes Yes
Multi-domain scaffolding Coding only Coding, trading, cybersecurity, biomedical, reasoning
Cross-model scaffold sharing No Yes (K1 ↔ K2)
Frozen LLM judge Same model Cross-model (K2 judges K1)
Persistent scaffold library No Yes (similarity-based retrieval)
Self-play curriculum No Yes (K1 and K2 generate tasks for each other)
Uncensored reasoning No Yes
Multimodal scaffolding No Yes (vision/image understanding)
Context length 256K 1M tokens

Creator

Sixpert K1 was created by Inyang David.

Provenance & Licensing

Weights are released under Apache-2.0. Shared for research and experimentation, as-is.

Acknowledgements

  • Creator: Inyang David
  • Architecture: Transformer-based multimodal language model
  • Quantization: llama.cpp (ggml-org)
  • License: Apache-2.0
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