verifier.org

OLMo 3

the only model here where 'fully open' survives contact with the evidence — weights, training data, code and checkpoints.

free (apache 2.0)#research#auditing#anyone-who-needs-to-know

every other entry calls itself open and means the weights. ai2 publishes the training data too — which is worth more than the benchmark places it gives up.

apache 2.0 on the weights, and alongside them the dolma 3 training corpus, the dolci post-training datasets, the training and evaluation code, and the intermediate checkpoints — all linked from the model card. if you need to audit what went into a model, or reproduce it, this is the only real option on this page.

the family is 7b and 32b dense, each in base, instruct, think and rlzero variants, which makes the reasoning-focused ones genuinely useful for research into how these models learn. the 7b runs on a 16-24gb consumer card and the 32b on a single 48-80gb card.

the description above is ours, condensed from the ranking. pricing moves — check it on the vendor's own page before you rely on it.

pricing
free (apache 2.0)
our verdict

every other entry calls itself open and means the weights. ai2 publishes the training data too — which is worth more than the benchmark places it gives up.

we researched this category against vendors' own pricing pages and licence files. that is where this line comes from — not from the vendor, and not from anything they paid for.

more open-weight llms

Nous Hermes

nous research's fine-tunes, published with open weights

#fine-tunes

AI21 Jamba

hybrid mamba-transformer models with long context, weights released

#long-context#hybrid

Falcon

model family from abu dhabi's technology innovation institute

#research

GLM-5.2

we checked thisfree (mit)

the top-ranked open-weight model on the intelligence index, under plain unmodified mit, with a launch post that tells the truth.

#anyone-who-wants-the-str#needs-the-legal-answer-t