BenchLeader

OPT-66B

OPT-66B is a Meta proprietary model, released 3 May 2022. It is not yet ranked: no independent benchmark results so far, only pricing and metadata.

Blended price
Output speed
First answer
Context
Released
3 May 2022

Benchmark results

One column per reasoning effort. Rank is among every configuration of every model on that benchmark. Hover a score for the run it came from.

Reasoning

Benchmarknot statedSource
HellaSwagnot in index74.5%#40Epoch AI Benchmarking Hub

Maths

Benchmarknot statedSource
GSM8Knot in index1.8%#71Epoch AI Benchmarking Hub

See also

Data as of 19 Sept 2026. Compare with another model.

Cite as: BenchLeader, “OPT-66B: benchmarks, pricing, speed and rank”, https://www.benchleader.com/models/opt-66b, data as of 19 Sept 2026.