Everything Our AI Tool Tests in AI

Our GPT-6 Astra test: the record score comes from a custom harness, and caching decides the invoice far more than the ranking does.

Our Claude Fable 5.1 test: headline rate unchanged, cache reads quartered, and three API breaks to plan for before migrating.

Our V4-Flash-Vision test: three wins out of eleven against Opus 4.8, six text benchmarks up, and twelve points behind on repository-scale code.

Kimi K3 test: first on the frontend arena and level with Opus 4.8 on simple code. Where it drops off, and which workloads it actually fits.

Grok 4.5 vs Muse Spark 1.1: Grok leads raw coding and token efficiency, Muse Spark wins on multi-tool orchestration and pricing per task.

Our Grok 4.5 Test after three pro days: xAI's model matches Claude Opus 4.7 on daily tasks, crushes cost per task, stumbles on ambiguous debug cases.

GPT-5.6 test: our hands-on verdict on Sol, Terra and Luna, the new OpenAI family, with detailed pricing and workload-by-workload arbitration.

We ran Leanstral 1.5, Mistral's new Lean 4 model, on three real cases. Our verdict for pros who are not mathematicians.

ChatGPT Plus at $20 a month: we ran it a full month in a real pro workflow against the free plan. Deep Research, GPT-5, clear verdict.

Marlin, Sakana AI's agent, runs for 8 hours straight and returns a full strategy. We put it to the test: real capabilities, limits, and verdict.