AIGuideClaude Opus 5.5: a cheaper flagship, with caveats
Anthropic cut Opus to $4/$20 per million tokens and cut cache reads by 60%. Here is what the vendor numbers mean, and what nobody outside Anthropic has checked yet.
8 min
Category
AI
AI moves faster than anyone can benchmark it, so most of the numbers on launch day are marketing until someone independent runs the test. We read the launch posts, separate the vendor claims from the confirmed facts, and tell you what it actually costs to finish a task — not just what a token costs.
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AIGuideClaude Sonnet 5.5, and what the 30% cost claim actually means
Anthropic's new Sonnet keeps its $2/$10 price, claims 30% less cost per task, and beats Opus 5.5 on one benchmark. Here's what to check.
9 min
AIGuideGrok 4.7: cheap, long-context, and not the winner in its own comparison
Grok 4.7 lands at $2 and $6 per million tokens with a 500,000-token context window. Strong on coding benches, and still behind on some.
9 min
AIGuideOpenAI DevDay 2026: what is confirmed, and what is only rumor
Written live during the event. What OpenAI has actually confirmed about DevDay 2026, what is only reported, and what to check afterwards.
9 min