Longcat 2.5 Preview Put To The Test Completely Free
By 813 Staff
A major product shift is underway — Longcat 2.5 Preview Put To The Test Completely Free, according to Elias (@iam_elias1) (in the last 24 hours).
Source: https://x.com/iam_elias1/status/2103963279894974856
Engineers who have been poking at Longcat's newest model describe a preview build that is polished in places and clearly unfinished in others — and, notably, one they did not have to pay to access. Developer Elias (@iam_elias1) said on September 26 that he tested Longcat 2.5 through Opencode, where the preview was available at no cost, a detail that has quietly circulated among developers tracking the company's release cadence.
Internal documents show Longcat has been preparing a 2.5 iteration for weeks, with the rollout described by engineers close to the project as anything but smooth. The build surfaced in Opencode rather than through a formal launch channel, which people familiar with the arrangement say was intended as a limited evaluation rather than a public debut. Whether the free access was deliberate or a configuration oversight remains unconfirmed. Longcat has not issued a public statement on the preview, and the company did not respond to questions about the timing or scope of availability.
For developers, the more consequential question is capability rather than cost. Early testers report incremental gains over the 2.4 generation, with particular attention to latency and instruction-following, though these impressions come from a small pool of users working with an unreleased build. Performance on long-context tasks and tool use — the areas where competing models have drawn the most scrutiny this year — has not been independently benchmarked. Any conclusions drawn from a handful of free sessions should be treated as provisional.
The episode matters because it illustrates how model releases now happen: less through keynote stagecraft than through quiet deployment to third-party coding environments, where a few hundred developers form the first impressions that shape broader adoption. Opencode has become an unlikely staging ground for that kind of soft launch, and companies have learned that a free preview generates feedback and word of mouth that a paid tier cannot.
What happens next depends on Longcat's posture. A broader preview or an official 2.5 announcement is expected in the coming weeks, according to people briefed on the roadmap, though timelines in this sector slip routinely. Until then, the most reliable signal remains what testers like @iam_elias1 are reporting: a model worth watching, shipped before it was finished.
