Both get the job done these days. I still hate Opus 5.5’s output, 6.1 Sol does an acceptable job of doing a second cleanup pass to it.
1)- Get a coding task and get the output of Opus and Astra.
2)- Open a new session and ask each other to review in detail the solution from the other model without mentioning where is it coming from.
3)- After the review, ask the original model to comment on it and state which solution is better and if the criticisms are valid...all in a new session.
4)- At the end Opus and others from Anthropic always end up agreeing the OpenAI model solution is better. My human review agrees.
After doing this for a few weeks...and consistently having their models rating higher the OpenAI solutions...I cancelled the Anthropic subscription...
DeepSeek, Qwen.
I tried $20 of usage credits as a test once the limit was reached.
I shit you not, it lasted for less than 5 minutes.
I get 5x more done (of equivalent quality) on my opencode go + DeepSeek flash sub for $40, than $200 anthropic sub.
I have been using DeepSeek flash for a few projects and it is actually crazy capable, And I don't think I have spent $20 via api in a month yet.
Pretty much the only alternative is loading up some credits and using Fable.