1d ago

LisanBench analysis finds Claude Opus 4.8 at 1-million-token context approaches GPT-5.5's 256K scores on GraphWalks

GraphWalks BFS scores jumped to 68.1% from v4.7's 40.3%.

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Original post

Long-Context capabilities are steadily increasing from Opus 4.6 to Opus 4.8 Opus 4.8@1 million now almost as good as GPT-5.5's 256K score

10:15 AM · May 28, 2026 View on X

Opus 4.8 should be MUCH better at long context, the jump is quite high on GraphWalks especially in the 1M subset!

9:53 PM · May 28, 2026 · 1.2K Views