What are you producing?
Separate long-form editorial, campaign concepts, conversion copy, and conversational support. A general language label does not establish strength in each format.
Purpose guide · Writing and marketing
Catalog current through July 21, 2026
Source-backed models explicitly labeled for language generation or chat. The labels establish relevance, not writing quality or brand fit.
Selection rule
Included when the Epoch record explicitly lists language modeling/generation, language generation, or chat. These broad labels do not prove copy quality, factual accuracy, persuasion, or brand adherence.
Task-fit shortlist
Ordered by release date for readability, newest first. The order is not a score or recommendation.
Released June 4, 2026
Released May 19, 2026
Released April 23, 2026
Released April 20, 2026
Released April 7, 2026
Released April 1, 2026
Released March 29, 2026
Released March 29, 2026
Released March 11, 2026
Released February 24, 2026
Released February 17, 2026
Released February 13, 2026
Released February 2, 2026
Released February 2, 2026
Released January 25, 2026
Released December 23, 2025
Released December 22, 2025
Released December 15, 2025
Released November 20, 2025
Released November 6, 2025
Released October 28, 2025
Released October 27, 2025
Released September 22, 2025
Released September 16, 2025
Released September 5, 2025
Released July 25, 2025
Released July 25, 2025
Released July 22, 2025
Released July 11, 2025
Released June 11, 2025
Released May 11, 2025
Released April 29, 2025
Released March 16, 2025
Released March 11, 2025
Released March 6, 2025
Released January 22, 2025
Released January 22, 2025
Released December 3, 2024
Released November 6, 2024
Released October 28, 2024
Released October 22, 2024
Released October 22, 2024
Released October 22, 2024
Released October 18, 2024
Released September 19, 2024
Released September 19, 2024
Released September 17, 2024
Released September 5, 2024
Released June 28, 2024
Released June 14, 2024
Released June 7, 2024
Released May 20, 2024
Released May 13, 2024
Released February 4, 2024
Released January 25, 2024
Released January 1, 2024
Released November 30, 2023
Released November 15, 2023
Released November 14, 2023
Released November 7, 2023
Released November 2, 2023
Released October 27, 2023
Released October 17, 2023
Released September 28, 2023
Released August 24, 2023
Released June 27, 2023
Released August 22, 2022
Released June 13, 2022
Released May 4, 2022
Released March 1, 2022
Released December 31, 2021
Released September 28, 2021
Released July 5, 2021
Released June 10, 2021
Released April 19, 2021
Released March 24, 2021
Released March 5, 2021
Released December 31, 2020
Released August 6, 2020
Released February 13, 2020
Released September 17, 2019
Released September 17, 2019
Released September 17, 2019
Released April 20, 2019
Decision criteria
These checks narrow an evaluation plan. They do not replace hands-on testing.
Separate long-form editorial, campaign concepts, conversion copy, and conversational support. A general language label does not establish strength in each format.
Test tone, claim discipline, required disclosures, and revision behavior against an approved brief and real examples.
Review every factual claim, citation, offer detail, and legal requirement. The catalog does not measure accuracy, persuasion, price, latency, or reliability.
Evidence boundary
No task-level quality, price, context window, latency, or reliability measurement is present in the Epoch catalog. We therefore publish no ranking or “best” label.
Catalog source: Epoch AI Data on AI Models, retrieved 2026-07-21, CC-BY. Artifact sha256:80ad08198183693101ceb246a5ea272d64c06c147fc41f72cca8526b32483424.
Each listed model links to its model-level source above. See the publication source ledger and methodology for the wider evidence policy.