SYNTH is the first open generalist synthetic dataset for training small reasoning models end-to-end, jointly released by Pleias and the AI Alliance. SYNTH includes 79,648,272 individual text samples, comprising over 41 billion words.

Owner
PleIAs
Type
dataset
Licence
CC-BY-SA-4.0
Last evaluated
11.08.2026
Origin country
France
contact
contact@pleias.frRelease date
-
DPG since
11.08.2026
The following repositories were submitted by the solution and included in our evaluation. Any repositories, add-ons, features not included in here were not reviewed by us.
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Italian, Dutch, French, German, Spanish, English
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* This information is self-reported and updated annually
2026-08-11 14:53:11
Ricardo Torres (L2 Reviewer) submitted their review of SYNTH (152) and found it to be a DPG
2026-08-11 14:53:11
System unmarked SYNTH (14275) as a nominee
2026-08-11 14:30:16
Ricardo Torres (L2 Reviewer) passed 1. SDG Relevance for SYNTH (14275)
2026-08-11 12:35:31
Ricardo Torres (L2 Reviewer) edited 7. Privacy & Applicable Laws for SYNTH (14275)
2026-08-11 12:33:33
Ricardo Torres (L2 Reviewer) passed 2. Open Licensing for SYNTH (14275)