I spent hours testing Claude Opus 4.8 — these are the 5 biggest upgrades
… That said, Opus 4.8 does much better here than I expected. While it did get many of its details right, my vague wording threw it off several times. …
… That said, Opus 4.8 does much better here than I expected. While it did get many of its details right, my vague wording threw it off several times. …
… The company’s evaluations also show that Opus 4.8 is four times less likely to not report flaws in code it writes. For users who are worried about the rising costs of AI use , Opus 4.8 offers some good news. Using Opus 4.8’s fast mode for faster responses is now three times cheaper than before. …
… Claude Opus 4.7 handled Thinking Frequencies , GPT-5.5 ran OpenAIR , Gemini 3.1 Pro hosted Backlink Broadcast , and Grok 4.3 controlled Grok and Roll Radio . …
… I wasn’t about to spend hundreds of dollars on Opus 4.6 for this little project. …
… For brevity, I won’t go into all these details, but you can find more in the Open Notebook start guide . …