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OpenAI MRCR v2 8-needle 128K-256K: leaderboard

OpenAI MRCR v2 8-needle long-context retrieval variant for the 128K-256K context range.

Source: openai.com.

Interactive version: theaggregate.ai/benchmark?slug=openai-mrcr-v2-8-needle-128k-256k · How It Works · Data refreshed daily, snapshot 2026-09-05.

Built by Mikhail Doroshenko — AI researcher, co-author of Humanity’s Last Exam. Independent project; no affiliation with any AI lab.
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