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AI Evaluation

360 summarised stories about AI Evaluation, each linking back to the original source. Browse all topics →

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Monday, 21 September 2026

GPT-6 Astra stress test: six one-shot build tasks

YouTube 3 weeks ago 34 ● 3 sources

Corey and Grant stress-tested GPT-6 Astra with six one-shot build tasks and minimal follow-up steering. One of the tasks was a black hole simulator. The results are that the model can still produce working builds across varied prototypes—from Blender and a physics game to a sci-fi world, sound diagnosis, and Cat Doom.

OpenAI forms math advisory group as its AI resolves more than 100 open problems

TechCrunch 3 weeks ago 51 ● 3 sources

OpenAI formed an independent advisory group on mathematics and artificial intelligence hosted by the Institute for Advanced Study in Princeton to provide mathematicians input on its math research. OpenAI said its internal model has resolved more than 100 additional open problems. The group will offer advisory and release-coordination input without decision-making power or authority to change OpenAI’s pace.

Grok Build vs. Claude Code: I tested which one has the better memory

The New Stack 3 weeks ago 20

Grok Build and Claude Code were tested to see whether each terminal coding agent remembered instructions after you closed and reopened it, with results tracked across three scenarios. Claude Code used 576,863 tokens and $1.05 total versus Grok Build’s 390,848 tokens and $0.41. Grok matched on two tests and passed all three by carrying cross-project rules via a global memory scope, while Claude Code failed the cross-project test and was slower and more expensive overall.

Grok 4.7 was built to work for hours. It still fails most of the time.

The New Stack 3 weeks ago 17 ● 9 sources

SpaceXAI released Grok 4.7, a coding agent model trained to handle long, hours-long runs by focusing reinforcement learning on harder tasks and improving self-verification and long-context management. Grok 4.7 scored 38.0% on Terminal-Bench 4.0, up from 20.3% for Grok 4.6. The model’s long-horizon performance improved substantially, but it still fails most of the time in long-running codebase evaluations, so reliability remains a limiting factor.

AWS open-sources an AI agent it says is 45% cheaper than Claude Code and Codex

The New Stack 3 weeks ago 15 ● 3 sources

AWS open-sourced Strands Harness, a general-purpose AI agent built on its Strands Agents SDK that can run locally or be deployed to various clouds. AWS says it was 45% cheaper than Claude Code and Codex in its benchmark comparison. Developers can now start from a preconfigured agent loop with built-in context and session handling while still swapping model providers and customizing tools and storage.

Advancing AI for biology: Teaching models to design and characterize antibodies

Amazon Science 3 weeks ago 31

Amazon Bio Discovery’s research team published three papers introducing AI methods to better predict binding and developability properties and to design antibodies or nanobodies for experimentally validated candidates. MochiBind scored 200,000 antibody pairs in roughly 13 seconds on a CPU, reporting more than a 100-fold inference speedup over competing methods. The work shifts antibody evaluation toward cross-antigen relative binding and batch-effect-aware context prediction, and it combines an epitope hotspot agent with de novo generative design to produce lab-validated hits against a novel cancer target.

Pruning LLMs Like a Physicist: Block Removal as an Ising Optimization Problem

Hugging Face 3 weeks ago 48

Researchers reformulated transformer block pruning as a constrained binary optimization mapped to an Ising glass, enabling fast scoring of block-removal combinations without running full benchmarks. At 50% depth pruning of Llama-3.3-70B-Instruct (removing 40 of 80 blocks), it reported an almost 23-point MMLU advantage over the best block-removal baseline. The method shifts block selection from independent/heuristic ranking to searching low-energy coupled configurations, including “excited” low-energy states that can outperform the single best solution.

I am often wrong

Boris Cherny’s Blog 3 weeks ago 38

The author describes an iterative process for product building that repeatedly redefines the problem and approach when new information appears, acknowledging they are often wrong during execution. The note says the process is implemented “many tries” for complicated problems. This changes teams’ expectations toward real-time feedback, clearer problem/approach definition, and updating assumptions as new data arrives.

There's no point at which turning your brain off will work

danluu.com 3 weeks ago 27

The article argues that people using LLMs while “turning off” their own judgment—treating outputs as if they automatically work—often get wrong or unusable results. It says that being a “meat proxy” only sort of works as of September 2026. As a result, the author concludes that high-value work still needs human QA/architecture and active supervision to handle out-of-distribution decisions and avoid issues like overfitting to tests or metrics.

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