All topicsSTATE OF AI REPORT. 2020

Language models grow more capable and less open

The 2020 report described language models that could generate, summarize, translate, and turn text into code. Scaling offered a route to better results across tasks, but the ability to inspect and reproduce research lagged behind the headline capabilities.

Questions in this section

What changed in language AI in 2020?How open was AI research in the report?Which language-model families featured in the report?Did language AI in 2020 mean only chatbots?How large was GPT-3 in the report’s account?What did the 15% code-availability statistic measure?Why might a research team struggle to reproduce a published model?What did closed implementations imply for research access?

One architecture supports more language tasks

GPT-3, T5, and BART illustrated how transformer models could support different text-to-text problems. A common architecture and large-scale pretraining offered a foundation for several applications rather than a separate bespoke model for every task.

One architecture supports more language tasks - 2020 report, PDF page 24
One architecture supports more language tasks. 2020 report, PDF page 24

Published papers are not always reproducible systems

Only 15% of papers published code in the report’s cited analysis. The report connected this shortfall with accountability and reproducibility, while noting that some industry code depended on proprietary infrastructure. A public paper did not necessarily give another researcher the means to reproduce it.

Published papers are not always reproducible systems - 2020 report, PDF page 11
Published papers are not always reproducible systems. 2020 report, PDF page 11

A published result was not always reproducible

A paper could describe an important advance without providing the code needed to recreate it. The report’s code-availability analysis made that gap visible. Readers should distinguish learning that a result exists from having the implementation, data, and resources needed to test or extend it.

Evidence you can use

AI progress in the 2020 report

Historical snapshot: October 2020. Dates and populations are specified per row.

AI progress in the 2020 report
MeasureReported valueDefinition and source
GPT-3 model size175B parametersModel size reported in the training-cost discussion.2020 report, PDF page 17
Papers publishing code15%Share in the report’s cited code-availability analysis.2020 report, PDF page 11

The code-availability figure describes the source’s paper population, not every AI project. Parameter count is a model specification, not a score for reasoning or reliability.

Frequently asked questions

Sources and dates

Historical snapshot published October 1, 2020. This web edition was prepared on 2026-10-11 from the online deck and original launch posts. Findings and forecasts retain their original time frame.

  1. 2020 report, PDF page 11Original 2020 report. This edition has no printed slide numbers. References use one-based PDF pages.
  2. 2020 report, PDF page 17Original 2020 report. This edition has no printed slide numbers. References use one-based PDF pages.
  3. 2020 report, PDF page 24Original 2020 report. This edition has no printed slide numbers. References use one-based PDF pages.
  4. State of AI Report 2020: online slides
  5. Nathan Benaich’s launch essayOctober 1, 2020.

Cite this page

Benaich, Nathan, and Ian Hogarth. “Language models grow more capable and less open.” State of AI Report 2020. Historical report snapshot; web edition prepared 2026-10-11.