LLMOpen weights
OPT-175B
Meta
Updated May 21, 2026 · Benchmarks via Artificial Analysis, specs & pricing via OpenRouter · Methodology · Report an error
Specifications
- Type
- LLM
- Access
- Open weights
- Released
- May 3, 2022
- Parameters
- 175B
- Context window
- 2,048 tokens
- Input
- Text
- Output
- Text
Our take
Meta’s open replication of GPT-3 scale, released with weights and a candid logbook — an early push toward open frontier-scale research.