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MoreThought/Fable-5.1-Max-Reasoning-CSP-470000x

Dataset Description This dataset contains 473,635 agentic coding and reasoning high-quality multi-turn traces originating from the Step 3.5 Flash SFT Code dataset. It was remade to sound and act very similar to the Fable 5.1 model on max reasoning effort in Fable-5.1-Max-Reasoning-Filtered-10000x. It holds over 2,000,000,000 tokens of step-by-step chain-of-thought programming across multiple complex coding domains. It has also been deduplicated and filtered to remove… See the full description on the dataset page: https://huggingface.co/datasets/MoreThought/Fable-5.1-Max-Reasoning-CSP-470000x.

sourceHugging Faceapache-2.0updated 12h agoView on Hugging Face
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Dataset Card

Dataset Description

This dataset contains 473,635 agentic coding and reasoning high-quality multi-turn traces originating from the Step 3.5 Flash SFT Code dataset.

It was remade to sound and act very similar to the Fable 5.1 model on max reasoning effort in Fable-5.1-Max-Reasoning-Filtered-10000x.

It holds over 2,000,000,000 tokens of step-by-step chain-of-thought programming across multiple complex coding domains.

It has also been deduplicated and filtered to remove no-reasoning and lower-quality traces, keeping only high-quality english slow reasoning traces.

Dataset Statistics

MetricValue
Total Examples473,635 Traces
Total Token Count~2,000,000,000 Tokens
Total Dataset Size6.8 GB
Average Trace Size14.3 KB
Average Token Count~4,500 Tokens

Dataset Contents & Coverage

The dataset includes step-by-step problem-solving for complex coding tasks, including:

  • —Algorithm design, implementation, and performance optimization.
  • —Advanced debugging and error-handling.
  • —Multi-step logic design and compliance with complex prompt constraints.

Uses

  • —Distilling Fable 5.1-style agentic coding and reasoning down to smaller LLMs.
  • —Improve general coding and reasoning capabilities.
  • —Teaching models to generate clear chain-of-thought steps and tool-use before outputting their final answer.

Important

This is not literal fable 5.1 distillation data, it does CSP (copying style preferences) on the Step 3.5 Flash SFT Code dataset with the Fable-5.1-Max-Reasoning-Filtered-10000x dataset.