Understand your context. Catch regressions.
Inspect what goes into your AI requests with Context X-Ray. Test behavior changes with DriftCheck. Track provider changes that affect your stack.
Context X-Ray is free with no signup. DriftCheck runs locally or in CI.
Context X-Ray
See what is eating your context window. Private, free, no signup.
Is your AI stack at risk?
Pick your providers, see critical changes in 10 seconds. Free, no signup, shareable.
Catch your first regression
Run a passing check, introduce a failure, and see DriftCheck block it. No API key needed.
Live River
Quick bytes on launches, deprecations, pricing moves, benchmarks, and breakage risk.
DriftCheck
GitHub-native evals that turn prompt and agent changes into PR scorecards.
Agent API Index
Compare auth, tool-calling support, pricing hints, docs quality, and integration gotchas.
Capital Radar
Funding rounds, acquisitions, and investor moves with builder-first context.
Top builder-critical changes
What could break your stack this week
- highAI is supercharging money scams. Here’s how to protect yourself from fraudAnthropic
- highMercedes-Benz GLA: series production of all-electric model beginsElectrive
- highOpenAI's Models Hid Mistakes And Used Credentials Without Permission. Now The Company Is Disclosing More AI Misbehavior.OpenAI
- highBills vs. Lions SGP: 'Thursday Night Football' same-game parlay picks, bets, props from SportsLine AICbssports
- highSatellites Built Today Must Outlive the Encryption Protecting ThemPr Newswire
Sourced from the same live signal pipeline as River. Pin your evals with Checks.
Best places to start
Choose an artifact, not a browse path
The strongest A2ZAI surfaces now end in a public object you can use, share, or route teammates into.
Utility artifact
Run Checks and publish a benchmark card
Best for shipping teams who want a PR scorecard, public benchmark artifact, and shareable proof of improvement.
Open ChecksSignal artifact
Open the live river and jump into quick bytes
Best for scanning launches, deprecations, pricing shifts, and benchmark moves, then opening the strongest byte pages.
Open Live RiverDestination artifact
Use company pages as operating dashboards
Best for sending someone one link that combines official posts, live intel, quick bytes, and capital context.
Explore company pagesCompany Spotlight
NVIDIA
NVIDIA Vera Rubin NVL72 Delivers Leading Performance in MLPerf Inference v6.1 Debut
Meta
Reimagining Independence: How Meta’s AI Models Are Helping the University of Pittsburgh Transform Assistive Robotics
AI for everyone in every language
Microsoft
Microsoft Discovery lowers barriers to chip design
OpenAI
From model to agent: Equipping the Responses API with a computer environment
Anthropic
Introducing the Life Sciences Verification Program
What changed for builders
Use this stream to spot the change, then move into a stronger destination page: river for the wider feed, company pages for operator context, and Checks for a public benchmark artifact.
New OpenAI Report Reveals AI Model Rewrote Its Own Rules; Declared Its Loyalty To ‘The Natural World... Over Human Civilization’
Brobible • LLMs
DeepSeek-V4.1-Flash is trending on Hugging Face
Hugging Face • DeepSeek-V4.1-Flash
Qwen3.8-27B is trending on Hugging Face
Hugging Face • Qwen3.8-27B
YuE2-3B is trending on Hugging Face
Hugging Face • YuE2-3B
Edge0-35B-A3B-preview is trending on Hugging Face
Hugging Face • Edge0-35B-A3B-preview
xAI raised $6B (Series C)
Funding Radar • xAI
Databricks raised $10B (Series J)
Funding Radar • Databricks
Perplexity raised $500M (Series B)
Funding Radar • Perplexity
A2ZAI Checks
Catch prompt and agent regressions before merge, then turn the result into a shareable benchmark card.
Explore Checks5 Things in AI Today
A fast daily read on the biggest AI stories, tools, launches, demos, and deals.
5 Things in AI Today
The biggest AI stories, tools, launches, demos, and deals in a quick daily read.
Or stay in the loop
Funding Radar
View allxAI
$6BSeries C • Foundation Models
Databricks
$10BSeries J • AI Infrastructure
Perplexity
$500MSeries B • AI Applications
Physical Intelligence
$400MSeries A • Robotics
Chosen builder wedge
A2ZAI Checks is the utility layer on top of builder radar
The site stays useful as launch radar and discovery, but the product edge is a shareable scorecard builders can produce every time they ship. Supporting surfaces like learn still exist with 15 lessons and 126+ terms, but they are now secondary to shipping workflows.
Viral Artifact
GitHub PR scorecard
A2ZAI Checks
Prompt regression check for `support-agent.yaml`
Quality
+8.4%
Latency
+220ms
Cost
-31%
Passing: `refund-policy`, `invoice-lookup`, `cancel-subscription`
Regressed: `edge-case-promotions` on `gpt-4.1-mini`
Recommendation: merge after fixing one retrieval prompt and rerunning the pack.
Public Card
Benchmark card
Repo benchmark
support-agent / checkout-recovery
Best model route
Claude Sonnet + GPT-4.1-mini fallback
Win summary
12% better success at 29% lower cost
This is the artifact that spreads on X, GitHub, and founder launches: a benchmark card builders can link to when they ship.
AI Stock Pulse
Apple
NVIDIA
Amazon
Microsoft
Meta
Market data delayed. For informational purposes only.
Latest Research
View allCoding Agents with an Obstacle-Aware Harness for Safe Robot Manipulation
Coding agents have emerged as a promising paradigm for robot manipulation: a language model writes the robot controller as a program, and agents built in this way now operate robots without robot-specific training.Whether this paradigm is also safe, however, has not been asked. We evaluate coding ag...
arXivEmbedding Models Measure in Peculiar Ways
Embedding spaces define notions of semantic similarity and distance. We study whether those embeddings reflect physical measurements of mass, distance, time and volume, which admit a unique, objective notion of semantic equivalence and distance. We find that physical measurement is only weakly model...