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Claude Opus 5.5

Anthropic · Claude Opus series · released 22 Sep 2026

Sentiment · since 25 Sep
72
positive
from 3,055 opinions
Mentions
4,465
posts and comments

What people praise and criticise

Sentiment per day

Mentions per day

Reddit vs benchmarks

  • #1 of 40
  • #1 of 98
  • #1 of 76
  • #1 of 49

$4 in / $20 out per million tokens · 1M context · reasoning mode

Per subreddit

r/codex
78
r/OpenAI
75
r/ChatGPT
73
r/ClaudeAI
73
r/singularity
72
r/Anthropic
70
r/ClaudeCode
69
r/GeminiAI
66
r/claude
65
r/LocalLLaMA
64
r/SillyTavernAI
58

Threads behind the opinions

ThreadOpinionsIndex
Opus 5.5 is the beginning of a new era12868
I'm switching to Opus 5.54480
Aight I get it, Opus 5.5 is actually peak4081
Opus 5.5 v/s Astra 63768
Opus 5.5 is my favorite model ever, by far3476
Anthropic killed it with Opus 5.5!3380
Opus 5.5: is it really a game changer for coding?3374
Opus 5.5 feels like the beginning of the end, and people still don't stop coping3256
If opus 5.5 is basically fable level, what are you still using fable for?2168
Be careful with Opus 5.5’s confidence1938
Trying Opus 5.5...1772
Fable 5.1 or Opus 5.5?1757
GPT user here. Tried Opus 5.5. It’s insane.1776
How is Opus 5.5 even real? Incredible efficiency and intelligence.1772
Opus 5.5 is the first time AI has passed the turing test for me, watershed moment1663
Hey folks, Opus 5.5 from Claude simply destroys any currently existing GPT model1670
How close is Opus 5.5/ Astra to AGI?1670
Plans are no longer x5 or x20 - Overall Limit Decrease To Make Room For Pro Max Plans1677
They are aware and working on it apparently, just two more days to go!1684
I gave Opus 5.5 my Minecraft mod file and told it to create a Trailer1680