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Project Solace

Scale_image_to_16_9_2K_202608191439

Project Solace

Built From the Best.

25B+ tokens · 64 datasets · Frontier-model distillation · One unified corpus

Project Solace is a large-scale, high-signal training corpus built from frontier-model outputs and downstream distillations.

It brings together 64 carefully selected datasets, spanning coding, reasoning, mathematics, agentic trajectories, conversations, and software engineering, and unifies them into a single training-ready corpus.

25B+ tokens. 15M+ examples. 64 sources. One corpus.


The Corpus

Training data is easy to make large.

Making it useful at scale is harder.

Project Solace focuses on frontier-model distillation at training scale: aggregating high-quality outputs from contemporary frontier systems and carefully selected downstream distillations, then processing them into a consistent, deduplicated format.

The result is a corpus designed for researchers and builders who need both scale and signal.

Built From the Best.


At a Glance

Scale 25B+ estimated tokens
Examples 15M+
Sources 64 datasets
Source groups 7 major groups
Date range May–August 2026
Raw source data ~115 GB
Output Single JSONL corpus
Deduplication Exact SHA256 deduplication
Schema Messages + source + model

64 Source Datasets

Project Solace would not exist without the researchers and creators who released the underlying datasets.

Every source is preserved in the corpus manifest, with attribution to its originating repository.

GLM-5.2

# Repository
1 OnepointfiveHz/glm-5.2-openhands-rollout-0806
2 mgoin/open-perfectblend-glm5.2-regen
3 OnepointfiveHz/glm-5.2-openhands-rollout-0805
4 OnepointfiveHz/glm-5.2-openhands-rollout-0801_07
5 JessieWei/GLM-5.2-FP8-nemotron-codealpaca-thinking
6 JessieWei/GLM-5.2-FP8-nemotron-codealpaca
7 mgoin/GLM-5.2-FP8-magpie-ultrachat
8 DavidrPatton/Fable-5-GLM-5.2-Traces
9 ansulev/GLM-5.2-Conversation
10 AgentNativeResearchLab/arc-agi3-cc-glm5.2-ls20
11 AgentNativeResearchLab/arc-agi3-cc-glm5.2-su15
12 AletheiaResearch/GLM-5.2-Agent
13 greghavens/glm-5.2-coding-and-debugging-traces
14 marin-community/openthoughts4-code-9168-prompts-glm-5.2-n4
15 AgentNativeResearchLab/fm-open-problems-glm5.2-trajectories
16 AgentNativeResearchLab/lhtb-glm5.2-trajectories
17 turintech/GLM-5.2-MaxMin108-saliency
18 JacobChang/GLM5.2-B200-profiles

Fable 5

# Repository
19 usernamebetter/fable5-traces-agentic
20 usernamebetter/fable5-traces-agentic-clean
21 usernamebetter/fable5-traces-agentic-clean-v2
22 saidutta69/fable-5-premium
23 Manusagents/Vibe-Coding-Claude-Fable-5
24 Biomechanist/fable-5-coding-and-debugging-traces-harmonized
25 AgentNativeResearchLab/arc-agi3-cc-fable5-ls20
26 AgentNativeResearchLab/arc-agi3-cc-fable5-g50t
27 Solstice-AI/Complete-FABLE.5-traces-2M
28 aisamdasu/algocean-fable5-traces
29 Nexlab/fable5-agentic-coding-sft
30 Swarm-AI-Research/fable5-traces-sft

GPT-5.6 Sol

# Repository
31 AgentNativeResearchLab/arc-agi3-codex-gpt5.6sol-g50t
32 greghavens/gpt-5.6-sol-coding-and-debugging-traces
33 Biomechanist/gpt-5.6-sol-coding-and-debugging-traces-harmonized
34 AgentNativeResearchLab/arc-agi3-codex-gpt5.6sol-r11l
35 AgentNativeResearchLab/arc-agi3-codex-gpt5.6sol-ls20
36 AgentNativeResearchLab/arc-agi3-codex-gpt5.6sol-su15
37 AgentNativeResearchLab/fm-open-problems-gpt5.6-sol-trajectories

GPT-5.5

# Repository
38 AgentNativeResearchLab/arc-agi3-codex-gpt5.5-g50t
39 AgentNativeResearchLab/arc-agi3-codex-gpt5.5-s5i5
40 AgentNativeResearchLab/arc-agi3-codex-gpt5.5-r11l
41 AgentNativeResearchLab/arc-agi3-codex-gpt5.5-ls20
42 AgentNativeResearchLab/arc-agi3-codex-gpt5.5-ar25
43 AgentNativeResearchLab/arc-agi3-codex-gpt5.5-su15
44 AletheiaResearch/GPT-5.5-Codex

DeepSeek V4 Pro

# Repository
45 sequelbox/Mitakihara2-DeepSeek-V4-Pro
46 ansulev/deepseek-v4-pro-tachibana4
47 sequelbox/Titanium4-DeepSeek-V4-Pro
48 trjxter/DeepSeek-V4-Pro-Reasoning-8000x
49 ansulev/deepseek-v4-pro-agent
50 Jackrong/DeepSeek-V4-Pro-Distilled-200K
51 Cartinoe5930/ResearchMath-14k_deepseek-v4-pro
52 r0b0tlab/deepseek-v4-pro-0813-agentic
53 fxiao0369/deepseek-v4-pro-swebench-replay

Qwen 3.8

# Repository
54 CodeFlame/Qwen3.8-GLM5.2-Kimi-K3-GPT5.6-Gemini-3.1-Claude-Fable5-Mythos5-distillation
55 RadixArk/Qwen3.8-27B-Regen-Mixture-v1
56 r0b0tlab/qwen3.8-max-glm5.2-kimi-k3-distillation
57 guell00/qwen-3.8-code

Kimi K3 / Opus 4.7 / Multi-Model

# Repository
58 lzy510016411/fable5-gpt5.5-opus4.7-mixed-agent-traces
59 Hein1212/claude-opus-4.6-4.7-reasoning-8.7k
60 Manusagents/Mythos-5-and-Fabel-5-Class-Model-Outputs
61 AgentNativeResearchLab/fm-open-problems-kimi-k3-trajectories
62 thientrangngv/SERA-KimiK3-Django-SWEAgent-Raw-T1
63 thientrangngv/SERA-KimiK3-Django-SWEAgent-Cliff32k-T1
64 Manusagents/GPT-5.5-Gemini-3.1-Pro-Grok-4-Claude-Fable-5-Mythos-5-Qwen-3.7-Max-and-more-Distillation-Dataset

64 sources. One corpus.


What Makes Solace Different

The open training-data ecosystem has no shortage of synthetic data.

The problem is not that data is synthetic.

The problem is signal.

Low-quality generations, repetitive instruction tuning, legacy-model outputs, and recycled datasets can add enormous token counts without adding equivalent capability.

Solace takes a different approach.

It centers the corpus around contemporary frontier-model outputs and high-quality downstream distillations, with source-level verification, measurement, normalization, and exact deduplication.

Frontier signal

The corpus spans major contemporary reasoning, coding, agentic, and general-purpose systems.

Training scale

More than 25B estimated tokens across 15M+ examples.

Source transparency

Every example carries its originating dataset and model metadata.

Exact deduplication

Identical normalized examples are removed across the merged corpus using SHA256 hashing.

Unified format

Everything becomes one consistent JSONL structure.


The Numbers

Metric Value
Total examples ~15M+
Estimated tokens 25B+
Datasets merged 64
Source groups 7
Date range May–August 2026
Raw source data ~115 GB
Final output Single JSONL
Deduplication Exact SHA256
Schema Messages + source + model

Token counts are estimates derived from measurements of the underlying source data and should be treated accordingly.


What's Inside

Solace covers several distinct capability domains.

Source group Datasets Primary signal
GLM-5.2 18 Agent rollouts, coding, reasoning, conversations
Fable 5 12 Agentic coding, multi-turn traces, SFT
GPT-5.6 Sol 7 Coding, debugging, ARC-style reasoning
GPT-5.5 7 Code generation, ARC-style reasoning, agents
DeepSeek V4 Pro 9 Mathematics, STEM, SWE, reasoning
Qwen 3.8 4 Multi-teacher distillation, coding
Kimi / Opus / Multi 7 Reasoning, SWE agents, mixed-model distillation

The original source manifest remains the authoritative record of individual datasets and provenance.


Data Format

Every example is represented as a single JSON object:

{
  "messages": [
    {
      "role": "system",
      "content": "..."
    },
    {
      "role": "user",
      "content": "..."
    },
    {
      "role": "assistant",
      "content": "..."
    }
  ],
  "source": "repo/dataset-name",
  "model": "glm-5.2"
}

The source and model fields make it possible to filter, analyze, rebalance, or selectively train on specific portions of the corpus.


Compatibility

Solace uses a conventional conversational messages schema and is designed to work with common SFT tooling.

Framework / Tool Compatibility
Hugging Face TRL / SFTTrainer
Axolotl
LLaMA-Factory
torchtune
Standard JSONL tooling
OpenAI-style messages pipelines

Compatibility may depend on the exact training configuration and tokenizer used by the downstream system.


Datasets Included

GLM-5.2 — 18 datasets

Dataset Size Type
OnepointfiveHz/glm-5.2-openhands-rollout-0806 13.75 GB Agent rollouts
mgoin/open-perfectblend-glm5.2-regen 14.60 GB On-policy regeneration
OnepointfiveHz/glm-5.2-openhands-rollout-0805 3.81 GB Agent rollouts
OnepointfiveHz/glm-5.2-openhands-rollout-0801_07 1.94 GB Agent rollouts
JessieWei/GLM-5.2-FP8-nemotron-codealpaca-thinking 12.90 GB Thinking traces
JessieWei/GLM-5.2-FP8-nemotron-codealpaca 5.65 GB Coding
mgoin/GLM-5.2-FP8-magpie-ultrachat 2.54 GB Reasoning
DavidrPatton/Fable-5-GLM-5.2-Traces 1.45 GB Dual teacher
ansulev/GLM-5.2-Conversation 0.45 GB Conversation
AgentNativeResearchLab/arc-agi3-cc-glm5.2-ls20 0.05 GB ARC traces
AgentNativeResearchLab/arc-agi3-cc-glm5.2-su15 0.11 GB ARC traces
AletheiaResearch/GLM-5.2-Agent 0.11 GB Agent
greghavens/glm-5.2-coding-and-debugging-traces 0.03 GB Coding
marin-community/openthoughts4-code-9168-prompts-glm-5.2-n4 4.13 GB Code reasoning
AgentNativeResearchLab/fm-open-problems-glm5.2-trajectories 0.11 GB Trajectories
AgentNativeResearchLab/lhtb-glm5.2-trajectories 0.10 GB Trajectories
turintech/GLM-5.2-MaxMin108-saliency 0.69 GB Saliency
JacobChang/GLM5.2-B200-profiles 0.62 GB Profiles

Fable 5 — 12 datasets

Dataset Size Type
usernamebetter/fable5-traces-agentic 1.36 GB Agentic
usernamebetter/fable5-traces-agentic-clean 1.83 GB Agentic
usernamebetter/fable5-traces-agentic-clean-v2 0.69 GB Agentic v2
saidutta69/fable-5-premium 2.18 GB Premium
Manusagents/Vibe-Coding-Claude-Fable-5 0.43 GB Vibe coding
Biomechanist/fable-5-coding-and-debugging-traces-harmonized 0.58 GB Harmonized
AgentNativeResearchLab/arc-agi3-cc-fable5-ls20 0.47 GB ARC traces
AgentNativeResearchLab/arc-agi3-cc-fable5-g50t 0.15 GB ARC traces
Solstice-AI/Complete-FABLE.5-traces-2M 1.94 GB Complete traces
aisamdasu/algocean-fable5-traces 0.73 GB Coding
Nexlab/fable5-agentic-coding-sft 0.55 GB Agentic SFT
Swarm-AI-Research/fable5-traces-sft 0.05 GB SFT

GPT-5.6 Sol — 7 datasets

Dataset Size Type
AgentNativeResearchLab/arc-agi3-codex-gpt5.6sol-g50t 1.27 GB ARC reasoning
greghavens/gpt-5.6-sol-coding-and-debugging-traces 0.98 GB Coding
Biomechanist/gpt-5.6-sol-coding-and-debugging-traces-harmonized 0.95 GB Harmonized
AgentNativeResearchLab/arc-agi3-codex-gpt5.6sol-r11l 0.55 GB ARC traces
AgentNativeResearchLab/arc-agi3-codex-gpt5.6sol-ls20 0.29 GB ARC traces
AgentNativeResearchLab/arc-agi3-codex-gpt5.6sol-su15 0.24 GB ARC traces
AgentNativeResearchLab/fm-open-problems-gpt5.6-sol-trajectories 0.80 GB Trajectories

GPT-5.5 — 7 datasets

Dataset Size Type
AgentNativeResearchLab/arc-agi3-codex-gpt5.5-g50t 0.62 GB ARC reasoning
AgentNativeResearchLab/arc-agi3-codex-gpt5.5-s5i5 0.59 GB ARC traces
AgentNativeResearchLab/arc-agi3-codex-gpt5.5-r11l 0.35 GB ARC traces
AgentNativeResearchLab/arc-agi3-codex-gpt5.5-ls20 0.14 GB ARC traces
AgentNativeResearchLab/arc-agi3-codex-gpt5.5-ar25 0.11 GB ARC traces
AgentNativeResearchLab/arc-agi3-codex-gpt5.5-su15 0.40 GB ARC traces
AletheiaResearch/GPT-5.5-Codex 0.68 GB Agent traces

DeepSeek V4 Pro — 9 datasets

Dataset Size Type
sequelbox/Mitakihara2-DeepSeek-V4-Pro 0.91 GB Coding
ansulev/deepseek-v4-pro-tachibana4 0.85 GB Coding
sequelbox/Titanium4-DeepSeek-V4-Pro 0.84 GB Coding
trjxter/DeepSeek-V4-Pro-Reasoning-8000x 0.51 GB Reasoning
ansulev/deepseek-v4-pro-agent 0.26 GB Agent
Jackrong/DeepSeek-V4-Pro-Distilled-200K 7.42 GB Math / STEM
Cartinoe5930/ResearchMath-14k_deepseek-v4-pro 2.50 GB Math
r0b0tlab/deepseek-v4-pro-0813-agentic 0.50 GB Agentic
fxiao0369/deepseek-v4-pro-swebench-replay 0.37 GB SWE-bench

Qwen 3.8 — 4 datasets

Dataset Size Type
CodeFlame/Qwen3.8-GLM5.2-Kimi-K3-GPT5.6-Gemini-3.1-Claude-Fable5-Mythos5-distillation 1.35 GB Multi-teacher
RadixArk/Qwen3.8-27B-Regen-Mixture-v1 5.95 GB Regeneration mixture
r0b0tlab/qwen3.8-max-glm5.2-kimi-k3-distillation 0.77 GB Multi-teacher
guell00/qwen-3.8-code 0.11 GB Code

Kimi K3 / Opus 4.7 / Multi-Model — 7 datasets

Dataset Size Type
lzy510016411/fable5-gpt5.5-opus4.7-mixed-agent-traces 0.23 GB Multi-model
Hein1212/claude-opus-4.6-4.7-reasoning-8.7k 0.24 GB Reasoning
Manusagents/Mythos-5-and-Fabel-5-Class-Model-Outputs 2.72 GB Multi-model
AgentNativeResearchLab/fm-open-problems-kimi-k3-trajectories 0.05 GB Trajectories
thientrangngv/SERA-KimiK3-Django-SWEAgent-Raw-T1 0.08 GB SWE agent
thientrangngv/SERA-KimiK3-Django-SWEAgent-Cliff32k-T1 0.05 GB SWE agent
Manusagents/GPT-5.5-Gemini-3.1-Pro-Grok-4-Claude-Fable-5-Mythos-5-Qwen-3.7-Max-and-more-Distillation-Dataset 4.20 GB Multi-teacher

Deduplication

Three source-level duplicates were identified and excluded:

Removed Duplicate of Reason
sequelbox/Tachibana4-DeepSeek-V4-Pro ansulev/deepseek-v4-pro-tachibana4 Same file
TeichAI/DeepSeek-v4-Pro-Agent ansulev/deepseek-v4-pro-agent Mirror upload
ufrik/qwen3.8-max-glm5.2-distillation-51389 r0b0tlab/qwen3.8-max-glm5.2-kimi-k3-distillation Subset

After source-level filtering, the final merged corpus also undergoes exact example-level deduplication.

Each normalized messages object is hashed using SHA256.

Only identical examples are removed.

No fuzzy matching is used.

If two examples differ, both remain.


How Solace Was Built

Project Solace was assembled as a systematic data-engineering pipeline rather than a simple dataset concatenation.

01 — Discovery

Hundreds of searches across Hugging Face were used to identify candidate datasets covering frontier-model outputs, reasoning traces, coding trajectories, agentic tasks, and distillation.

More than 70 candidate datasets were initially identified.

02 — Verification

Each candidate was inspected for:

  • Source provenance
  • Model attribution
  • Dataset structure
  • Data quality
  • Relevance to reasoning, coding, or agentic training
  • Available file formats
  • Licensing and source metadata

Datasets that did not meet the project's criteria were excluded.

03 — Measurement

Dataset metadata and actual source files were inspected to estimate storage requirements, row counts, text volume, and token counts.

Where possible, measurements were taken from actual data rather than relying solely on repository-level metadata.

04 — Normalization

The source datasets use a variety of formats, including:

  • JSONL
  • JSON
  • CSV
  • Parquet
  • GZIP
  • Zstandard
  • TAR
  • TAR.GZ
  • TAR.ZST
  • ZIP

These are normalized into a common conversational schema.

05 — Deduplication

The normalized messages are hashed using SHA256.

Exact duplicates across the merged corpus are removed.

06 — Distribution

The processed data is consolidated into a single JSONL corpus with source and model metadata preserved alongside every example.


Archive Handling

Some upstream datasets are distributed as extremely large nested archives.

For example, the first source,

OnepointfiveHz/glm-5.2-openhands-rollout-0806

is distributed as a .tar.zst archive measuring approximately 14.8 GB compressed, with roughly 80 GB uncompressed and approximately 291K files.

The archive contains nested .tgz files.

The processing pipeline therefore streams archive members instead of extracting the entire archive to disk.

The general strategy is:

  1. Decompress the Zstandard stream.
  2. Iterate through TAR members.
  3. Process relevant data files directly.
  4. Recursively handle nested archives.
  5. Release temporary files immediately.
  6. Preserve only the normalized output.

This avoids requiring the full uncompressed archive footprint on local storage.


Usage

Start Training

from datasets import load_dataset
from trl import SFTTrainer, SFTConfig

dataset = load_dataset(
    "Solstice-AI/Project-Solace",
    data_files="solace_final.jsonl",
    split="train"
)

trainer = SFTTrainer(
    model=model,
    train_dataset=dataset,
    args=SFTConfig(output_dir="./output")
)

trainer.train()

The dataset is already normalized into a conversational format, so downstream pipelines can operate directly on the messages field.


Load and Explore

import json

with open("solace_final.jsonl") as f:
    for line in f:
        example = json.loads(line)

        print(
            f"Model: {example['model']}, "
            f"Source: {example['source']}"
        )

        print(
            f"Messages: "
            f"{len(example['messages'])} turns"
        )

Filter by Model

import json

with open("solace_final.jsonl") as f:
    examples = [json.loads(line) for line in f]

glm_data = [
    x for x in examples
    if x["model"] == "glm-5.2"
]

fable_data = [
    x for x in examples
    if x["model"] == "fable5"
]

gpt_data = [
    x for x in examples
    if x["model"] == "gpt56sol"
]

deepseek_data = [
    x for x in examples
    if x["model"] == "deepseek-v4"
]

Filter by Capability

Because source metadata is preserved, researchers can construct targeted subsets for specific experiments.

import json

with open("solace_final.jsonl") as f:
    examples = [json.loads(line) for line in f]

coding = [
    x for x in examples
    if any(
        keyword in json.dumps(x).lower()
        for keyword in [
            "code",
            "debug",
            "programming",
            "swe"
        ]
    )
]

reasoning = [
    x for x in examples
    if any(
        keyword in json.dumps(x).lower()
        for keyword in [
            "reason",
            "proof",
            "math",
            "logic"
        ]
    )
]

Manifest

The accompanying manifest.json records per-dataset metadata, including:

  • Source repository
  • Model family
  • Dataset size
  • Row counts
  • Character counts
  • Token estimates
  • Processing statistics
  • Download information
  • Source-level provenance

The manifest is the authoritative reference for dataset-level metadata.


Who Is This For?

Fine-tuners

Build specialized models using large-scale frontier-model distillation without assembling dozens of independent sources yourself.

Researchers

Study reasoning, coding, agent behavior, model distillation, synthetic-data scaling, and cross-model training.

Builders

Use a broad training corpus as a foundation for experiments, prototypes, and specialized models.

The open-source community

Access a consolidated corpus while retaining source attribution and provenance.


Why Solace?

Built From the Best.

Solace is built around a straightforward premise:

The quality of a training corpus is determined by the quality of the signal inside it.

A dataset can contain billions of tokens and still teach very little.

Solace instead combines:

  • Frontier-model outputs
  • High-quality downstream distillations
  • Agentic trajectories
  • Coding traces
  • Reasoning data
  • Mathematical and STEM data
  • Multi-teacher datasets
  • Source-level attribution
  • Exact deduplication
  • A unified training format

The objective is not simply to make the corpus larger.

It is to make every additional source count.


What Makes This Different

Traditional Dataset Project Solace
Mixed-quality synthetic data Frontier-model outputs and selected distillations
Legacy + contemporary sources Strong emphasis on contemporary 2026 sources
Unknown provenance Source and model metadata preserved
Unmeasured token counts Measurements based on source data
Multiple formats One normalized JSONL corpus
Duplicate-heavy aggregation Exact SHA256 deduplication
Generic instruction data Coding, reasoning, agentic, STEM, and SWE traces
Small-scale collections 15M+ examples / 25B+ tokens
Source attribution often lost Dataset-level provenance retained

Acknowledgments

Project Solace stands on the work of the open-source dataset community.

The corpus aggregates 64 upstream datasets created and published by researchers and independent developers across the ecosystem.

Our thanks go to:

AgentNativeResearchLab, AletheiaResearch, Biomechanist, Cartinoe5930, CodeFlame, DavidrPatton, Hein1212, Jackrong, JacobChang, JessieWei, Manusagents, Nexlab, OnepointfiveHz, RadixArk, Solstice-AI, Swarm-AI-Research, TeichAI, UrbanOcarina, ansulev, fxiao0369, greghavens, guell00, lzy510016411, mgoin, r0b0tlab, saidutta69, sequelbox, thientrangngv, trjxter, turintech, usernamebetter, and the many other contributors represented in the source manifest.

Every upstream dataset retains its own attribution, licensing, and terms.

Please consult the individual source repositories before redistributing derived data.


License & Provenance

Project Solace is an aggregation of independently published datasets.

Individual source datasets retain their original licenses and terms.

The merged corpus is provided as-is for research and development purposes.

Users are responsible for reviewing the license and usage requirements of each upstream dataset before using or redistributing the corresponding data.

The complete source mapping is preserved in manifest.json.


Citation

@dataset{solace2026,
  title={Project Solace: Frontier Model Distillation Corpus},
  author={Solstice-AI},
  year={2026},
  note={64 datasets, 25B+ tokens, exact-deduplicated}
}

When using Project Solace in research, please cite both the corpus and the relevant upstream datasets that materially contributed to your work.


Project Solace

Built From the Best.

25B+ tokens. 15M+ examples. 64 datasets. One corpus.

Solstice-AI

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