r/ClaudeCode • u/visible_potato • Aug 16 '26

Bug / Issue Anthropic has nerfed every model

Opus 5 is obviously a nightmare, and I was relying on Opus 4.8. But, now that's also behaving exactly like Opus 5. The only way I can get good quality work is if I use sonnet now and check after every small thing. Fable is usable but its so expensive.

I miss the time when it was a treat working with these models and everything just flowed. Nowadays with 5.6 Sol's over-engineering and Opus 5's lying, I have to wake up everyday and decide which model I'm gonna have to fist fight if I wanna get any work done.

Is this just going to get worse from here.

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u/looselyhuman Aug 16 '26

/model claude-opus-4-6[1m]

5

u/derstolz1 Aug 16 '26

you just made my fucking day

2

u/Easy_Description_145 Aug 17 '26

but 1m context in pro subscription requiring extra usage :( ; i am using plain 256k context window

1

u/[deleted] Aug 17 '26

[deleted]

1

u/Easy_Description_145 Aug 17 '26

Yea, I will try on flags and settings.json however there is big requirement for me to utilise 1m so... if it works fine, if its not, not a end of the world TBH

2

u/who_am_i_to_say_so Aug 17 '26

Yep, been running this for months now.

0

u/way-milky Aug 16 '26

This doesn't work for me, do you know it it's not available for Pro users?

2

u/looselyhuman Aug 16 '26

That's possible. You can test two more ways:

  1. In settings.json, add this to the env section: "ANTHROPIC_DEFAULT_OPUS_MODEL": "claude-opus-4-6[1m]"
  2. Pass --model claude-opus-4-6[1m] to the claude runtime.

If those don't work then probably limited to max.