AI & Tools

An August date, unchanged prices: I traced the sources. What is actually proven about Claude Fable 5.1 and how to spot a real leak.

Claude Opus 5 after five days: effectively tied in the Intelligence Index, a 50 percent hallucination rate and rank 5 in the blind user vote.

There is no model called GPT-6. What OpenAI actually confirmed in its post-mortem of 21 July 2026, and where the circulating numbers come from.

Claude Opus 5 benchmarked: first place in the Intelligence Index with 61 points, half the Fable 5 price and the cost paradox of verbosity.

The US government shut down Claude Fable 5, and three weeks later it was back. Timeline, the Amazon report, the new safeguard and what it means for firms.

OpenAI's GPT-5.6 line (Luna, Terra, Sol) in a benchmark check and the METR cheating findings: why strong numbers and reward hacking show up together.

Kimi K3 by Moonshot AI benchmarked: the largest open model, ranked 2nd to 4th against Fable 5 and GPT-5.6 Sol, best price-performance ratio.