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Read the dataset card, license and commit history. A public upload is not proof that data came from Anthropic.
Public datasets, reviewed links and real traces
Claude Fable 5 datasets and agent traces
Find public Fable 5 trace datasets, Claude Code JSONL sessions and adjacent coding-agent trajectories. Compare formats and provenance before opening a source or replaying a trace.
Fable 5 collections
Public Fable 5 datasets
These are third-party public dataset pages. Counts and schemas can change, so verify each source before using it for research, evaluation or training.
Hugging Face
Glint Research — Fable 5 traces
Public agent trajectories labeled with the claude-fable-5 model, including messages and tool-use context.
about 4.7K rowsagent tracesFable 5tool callstrajectories
View on Hugging FaceHugging Face
Claude Fable 5 — Claude Code
A compact collection of Claude Code session transcripts useful for viewer and parser testing.
about 63 sessionsClaude Code JSONLClaude CodeJSONLsessions
View on Hugging FaceHugging Face
Fable 5 SFT traces
A cleaned derivative of public Fable 5 traces, organized for supervised fine-tuning and analysis.
about 4.7K rowscleaned tracesSFTcleanedderivative
View on Hugging FaceHugging Face
Claude Fable 5 code
Coding and math examples associated with Fable 5. These are examples, not full replayable agent sessions.
about 600 examplesprompt / responsecodepromptsresponses
View on Hugging FaceSource cards reviewed August 30, 2026. Approximate counts may change upstream.
Broader trace collections
More coding-agent trace sets
Compare Claude Code, Codex and synthetic coding-agent behavior beyond a single model label—including a real 160-session dataset rendered in tracehouse.
tracehouse
tracehouse public agent sessions
A real, shareable trace set rendered in tracehouse with prompts, tool activity, timing and run-level navigation.
160 sessionsinteractive traceslive viewershareabletiming
Open in tracehouseHugging Face
Trace Commons agent traces
Contributor-reviewed traces from Claude Code, Codex and other coding agents for reproducible analysis.
growing collectionopen agent sessionsClaude CodeCodexopen data
View on Hugging FaceHugging Face
Agentic coding trajectories
Synthetic multi-turn coding trajectories for studying agent behavior, tool use and task completion.
15K sessionsnormalized trajectoriessyntheticmulti-turncoding agents
View on Hugging FaceIs the Claude Fable 5 dataset leaked data?
Searches for a “Fable 5 leak,” “Claude Fable 5 leaked data” or a “Fable 5 system prompt leak” often lead to community mirrors, transformed datasets and social posts. A public upload alone does not establish that it contains confidential Anthropic data.
The listings above describe what their public cards claim. We do not label them as verified leaks, authenticate alleged system prompts or imply endorsement by Anthropic. Treat provenance, licensing and consent as separate questions from technical usefulness.
Inspect the schema
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Separate originals from derivatives
Compare fingerprints and source references before counting repacks as independent datasets.
Record and share your own agent trace set
tracehouse records prompts, tool calls, outputs, subagents, errors and timing from Claude Code and Codex. Share selected datasets while keeping private sessions private.