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FAILED
43/100
UNBOUGHT SCORE
CONFIDENCE 99.3%
Red Flags
C

Claude Opus 5

Anthropic Opus-tier model, summer 2026; strong coding and reasoning below the Mythos class
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FIRST-HAND READS

What people reported, in their own words. Every line links to where it was said.

  • “context of today's models (that I've been using - Claude Opus 5 and GPT-Sol) are a black box to a user like me”

    NEGATIVE · Hacker News · 2026-08-29

  • “I tried again with Claude Opus 5 and it added a completely new tab with a complete new document that, although imperfect, much better matched my expectations”

    POSITIVE · performance · Hacker News · 2026-08-21

  • “There was a lot of back and forth with each time Claude giving me the stereotypical "Great catch! I see my mistake in the previous iteration..." responses.”

    NEGATIVE · performance · Hacker News · 2026-08-11

  • “I use Claude Opus 5 at high to plan, Claude Opus 5 at low to execute the plan.”

    MIXED · features · Hacker News · 2026-07-30

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