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Open AI models lag proprietary versions by 8 ECI points

By PulseAugur Editorial · [3 sources] ·

Epoch AI reports that open-weight AI models have consistently lagged behind proprietary models by an average of 8 ECI points since January 2026. This gap is comparable to the difference observed between OpenAI's GPT-5 and GPT-5.5. The analysis indicates that open-weight models have been approximately four months behind the state-of-the-art. AI

IMPACT This analysis highlights a persistent gap, suggesting that cutting-edge AI capabilities remain primarily with proprietary models, potentially impacting the pace of open-source innovation.

RANK_REASON The cluster reports on an analysis of AI model capabilities, which falls under research.

Read on Mastodon — fosstodon.org →

AI-generated summary · Google Gemini · from 3 sources. How we write summaries →

Open AI models lag proprietary versions by 8 ECI points

COVERAGE [3]

  1. Mastodon — fosstodon.org TIER_1 English(EN) · [email protected] ·

    The average gap between open vs. proprietary capabilities since Jan 2026 has been 8 ECI points — similar to the difference between GPT-5 and GPT-5.5. # AI News

    The average gap between open vs. proprietary capabilities since Jan 2026 has been 8 ECI points — similar to the difference between GPT-5 and GPT-5.5. # AI News # Qwen # Kimi # OpenAI More on this Data Insight: https:// epoch.ai/data-insights/open-cl osed-eci-gap

    LINKS epoch.ai/…/open-closed-eci-gap
  2. Mastodon — fosstodon.org TIER_1 English(EN) · [email protected] ·

    @epochai 1/2) We took another look at the capability gap between open-weight and proprietary models. Since the start of the year, open-weight models have lagged

    @epochai 1/2) We took another look at the capability gap between open-weight and proprietary models. Since the start of the year, open-weight models have lagged the state of the art by four months. https:// bsky.app/profile/epochai.bsky. social/post/3mmzdcieib42n # AI News 5/29

  3. Mastodon — mastodon.social TIER_1 Italiano(IT) · [email protected] ·

    🧠 An Epoch AI report analyzes the capability gap between open-weight and proprietary models. 👉 Details: https://www.linkedin.com/posts/alessiopoma

    🧠 Un report di Epoch AI analizza il divario di capacità tra modelli open-weight e modelli proprietari. 👉 I dettagli: https://www. linkedin.com/posts/alessiopoma ro_ai-genai-generativeai-share-7466444278567907328-7nGn/ ___ ✉️ 𝗦𝗲 𝘃𝘂𝗼𝗶 𝗿𝗶𝗺𝗮𝗻𝗲𝗿𝗲 𝗮𝗴𝗴𝗶𝗼𝗿𝗻𝗮𝘁𝗼/𝗮 𝘀𝘂 𝗾𝘂𝗲𝘀𝘁𝗲 𝘁𝗲𝗺𝗮𝘁𝗶𝗰𝗵𝗲, 𝗶𝘀𝗰𝗿…

    LINKS linkedin.com/…/alessiopomaro_ai-genai-gen… alessiopomaro.it

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