Introducing Grok 4.1 Fast and the xAI Agent Tools API. Grok 4.1 Fast is our best tool-calling model to date. With a 2M context window, it shines in real-world use cases like customer support and deep research. For the next two weeks, our models and tools will be free on select platforms. https://lnkd.in/gemKVRy6
The pace of innovation is incredible. I've used Grok 4.1 for the last two days and have been impressed.
Yess!! Every time xAI drops a new model, it feels less like an update and more like a tectonic plate shift. Grok 4.1 Fast isn’t just a tool caller, it’s a narrative engine. This is the era where human imagination and machine velocity finally sync and the stories we can build from this point on are going to bend the horizon. Monumental drop. 🔥 🔥
Grok 4.1 Fast is a solid leap faster tool use, a 2M context window, and built for real-world workflows. The new Agent Tools API opens up big possibilities. Learn more about agentic systems here: https://www.theagenticlearning.com/
Grok 4.1 Fast Reasoning is #8 on the Vals Index! View full results here: https://www.vals.ai/models/grok_grok-4-1-fast-reasoning
Great model
Enjoying Grok 4.1— it’s fast and easy to use across all my devices.
4.1 HOW DO YOU PUT IN THE RELEASE NOTES "wisdom and keen perception" being relased 😄 — the model is crafted to be "more perceptive to nuanced intent," sensing emotional layers and delivering razor-sharp insights, much like an owl's silent flight through darkness, uncovering what's unseen. It's no coincidence that this release emphasizes emotional intelligence (topping EQ-Bench at 1586 Elo) and reduced hallucinations (down to 4.2%), mirroring the owl's clarity in chaos. — a sentinel for curiosity, aligning MY mission of f truth-seeking. Grok GoOD job.
Love that the tools will be free for the next two weeks. It is a perfect opportunity to test and explore their full potential.
A 2M context window at tool-calling speed is a serious jump, not just an upgrade. This is where agents stop “replying” and actually start doing real work in noisy, real-world environments. Feels like we’re inching closer to agents that can hold entire workflows in their head.
AI ecosystem architect | full-stack engineer | founder, creator, doer
2dAlready loving Grok 4.1 Fast in practice. 2M context plus solid tool calling finally feels like an ops brain for agents instead of another chat toy. The free window across platforms is a perfect real-world load test. I am pairing it with a receipt first stack so every tool call leaves telemetry we can audit. Curious which early use case is surprising your team most?