A breakthrough for Google loyalists, and a great option for frontier hoppers—if they can deal with its outdated harness
With 20-plus launches, here are the five that matter
A proactive agent, by turns flashy and frustrating
Anthropic's new model is a more capable partner than Sonnet 5, so long as you keep a hand on the wheel and know when to call in Opus
Two models, one clear tradeoff
Fable-level power at roughly 60 percent less than Fable’s token price makes Opus 5.5 impossible to ignore
A professional creative studio puts GPT-6 to the test
Its new model turns fuzzy questions into probabilities fast and cheaply enough to check an AI agent’s work as it goes
OpenAI’s new model impressed us with writing, operating software, and visual design. Anthropic’s Fable still has better instincts for building a product.
Our tests show where it replaces Fable and Opus—and where we’re keeping the alternatives
Anthropic’s latest Opus can do impressive work—but getting it there may require dismantling the systems you already use
Sol is fast, resourceful, and unusually easy to steer—but Fable still gets the assignments we want to hand off completely
Anthropic’s new model can draft, code, and analyze competently, but every use case has a cheaper, faster, or smarter alternative
The Mythos-class model is a warp drive for power users—but overpowered for everyone else
Opus 4.8 tops both our Senior Engineer benchmark and our writing tests. It’s the most complete model we’ve tested. We just wish it had an app to match.
OpenAI’s new model is a top-end senior engineer—and easy to talk to
Anthropic's latest Opus is more precise, more literal, and the best coding model we've tested on well-specified tasks—but it won't fill in the gaps for you anymore
The AI-native IDE is now becoming an agent-orchestration tool. Will it work?
GPT-5.4 is fast, opinionated, and good enough to tempt our Opus loyalist
Sonnet 4.6 delivers Opus-close performance at half the price—but speed didn't come along for the ride
Katie Parrott
Dan Shipper
Cyrus Duff
Mike Taylor
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