Which one has the most chance of open-sourcing old 2020-2024 AI models? OpenAI, Google or Antrophic? Why? Tell also a model that would open source (ya select only one old model)

Reddit r/LocalLLaMA / 5/29/2026

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The article (a Reddit-style question) asks which of OpenAI, Google, or Anthropic is most likely to open-source older AI models from the 2020–2024 period.
It lists candidate models for each company: OpenAI’s GPT/Codex line (GPT-3 through GPT-4o/mini) and Google’s PaLM 2 and Gemini/Imagen series, as well as Anthropic’s Claude Instant and Claude 2.x models.
The prompt implicitly invites reasoning about companies’ incentives, release policies, and likely openness for “older” generations of their frontier models.
It requests choosing only one specific older model that would be most plausible to open-source, based on the respondent’s judgment.

if OpenAI selected = GPT-3 (2020), Codex (2021), GPT-3.5 (2022), GPT-3.5 Turbo (2023), GPT-4 (2023), GPT-4 Turbo (2023), GPT-4o (2024) or GPT-4o mini (2024)?

if Google selected = PaLM 2 Bison, PaLM 2 Unicorn, PaLM 2 Gecko or PaLM 2 Otter (2023), Gemini 1.0 Pro, (2023), Gemini 1.5 Flash (2024), Gemini 1.5 Flash-8B (2024), Gemini 1.5 Pro (2024), Imagen 1 (2022), Imagen 2 (2023) or Imagen 3 (2024)

if Antrophic selected = Claude Instant v1, Instant v1.1, Instant v1.2, Claude 2 or Claude 2.1 (all from 2023)

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Which one has the most chance of open-sourcing old 2020-2024 AI models? OpenAI, Google or Antrophic? Why? Tell also a model that would open source (ya select only one old model)

Key Points

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