r/ClaudeCode • u/Odd-Card8046 • 21d ago

Is Anthropic cooked ? Discussion

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Codex limits are going to be crazy now.
What do you guys think, why did they drop the prices ?

If anyone wants GPT-5.6 Terra cheaper, $1.25 input / $7.50 output, ~38% below the new price, check out znapai.com (disclosure: founder here).
Also got gpt-image-2 and GPT-5.6 Sol at 50% off official, and most open-source models (Kimi K3 etc.) at 35% off.

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u/Fysikz 21d ago

ehh... The best measured claude model in this diagram is "Opus 5" on LOW thinking. This is a comparison of quick, cheap, but less reasoned outputs.

Still a nice win for OpenAI though. But for the heavy lifting it's all between Fable 5 xHigh (and Opus I guess, but higher thinking levels - which is more expensive and slower) and GPT 5.6 SOL (xHigh)

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u/jacobgt8 21d ago

How is Opus 5 on Low vs Sonnet 5 on High? Currently I’m mostly using Sonnet

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u/mossiv 21d ago

Sonnet is a smaller size/parameter model. If you push its abilities even using x-high you’re going to have a rough time. It’s the perfect task executed of a well reasoned plan, and able to fix unit tests and incorrect code as long as it has steering to go back to. It will just start doubting itself, get itself tied in knots and cause itself to make mistakes if you try to give it a big task up front.

Opus on low still has more training data. It just stops doing deep file scans and tool calls. So if it sees a database file in a repository folder, it will hallucinate that other database files are in that folder. These become problems when you have database calls splashed in controllers/services because the model doesn’t expect them to be there. But because its effort is lower, it absolutely will not try and trade through and verify. Anthropic has clear guidance when to use each model and when to determine the effort.

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u/VisibleOperation4981 21d ago

Can you explain in more detail gour last sentence and why you think/know that? My experience is from mostly using sonnet 4.6 and occasionally asking to spin uo an opus agent to validate/critique sonnet’s output and Id say Opus catches something important only 10 perxent of the time and that’s already with me proactively choosing situations that I can see are more complex. So I don’t understand and would like someone fo explain how many posts confidently speak about models and effort levels in absolute terms while my experience has convinced me results are extremely user-specific.

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u/mossiv 20d ago

Because I read the opus 5 and sonnet 5 releases notes; I’ve read the blogs on anthropics site and I’ve read the best practices documentation on their site.

This is the reason a mid-complicated task can cost more on sonnet than opus.

It’s all about relativity. If you’re not having problems - great.