Every time a stealth model appears, the first question is “is it better than ChatGPT / Claude / Gemini?” For Ox Alpha, the honest answer is that nobody can say yet — and this guide explains exactly what can be compared today, what cannot, and how to find out for yourself while the model is free.
What you can compare right now
Context window
Ox Alpha accepts 1,048,576 tokens of context and can emit up to 131,072 tokens in a single response. Both figures are on the OpenRouter listing and both are at the top end of what the major model families offer. If your work involves whole repositories, long transcripts, or book-length documents, this is a real, checkable differentiator rather than a benchmark claim.
Modalities
Text, image and video in; text out; audio rejected. Several frontier families accept images; video input is less common. Again, this is a listed capability you can verify with one API call.
Price
$0 per token during the preview. No commercial model family matches that, for the obvious reason that it is a temporary pre-release arrangement. The window is expected to close around August 27, 2026, after which a revealed model normally gets ordinary pricing.
Transparency
Here the comparison runs the other way. ChatGPT, Claude, Gemini, GLM and Grok all come from named developers with published documentation, usage policies and, usually, benchmark reports. Ox Alpha has an anonymous provider, no model card, no open weights and no official scores. For anything sensitive that matters more than raw capability.
What you cannot compare yet
Quality. There is no official benchmark for Ox Alpha. The only third-party number — roughly 80% on a 10-task DeepSWE subset reported by one developer — is far too small to rank against anything. We will not publish a comparison table until there are numbers produced under documented conditions; see the benchmarks page for what exists and its caveats.
Identity. If the fingerprinting reports pointing to the GLM family turn out to be right, then “Ox Alpha vs GLM” is not a comparison at all — it is the same lineage. Until the developer announces the model, that remains speculation (the evidence so far).
Reliability. Frontier commercial models come with uptime expectations. A stealth preview can be rate-limited, renamed, re-priced or removed without notice.
How to run a fair comparison yourself
- Use your own tasks. Pull 10–20 real items from your backlog — bug fixes, a refactor, a long document to analyse.
- Run each through Ox Alpha and your current model. Use the OpenRouter API with
stealth/ox-alpha; our guide has the exact call. - Score blind. Strip model names before judging outputs.
- Test the long-context claim specifically. Give both models the same 300-page document and ask questions whose answers are scattered across it.
- Note the failure modes. Refusals, formatting, tool-call correctness and latency matter as much as the final answer.
Do it this week: the free window is the only time this comparison costs nothing. And if you publish results, tell us — we will add them to the benchmarks page with full attribution.
Bottom line
On specs that can be checked — context, output length, modalities, price — Ox Alpha is competitive with or ahead of the big families. On the things that usually decide a model choice — measured quality, provenance, and reliability — it is an unknown, and anyone telling you otherwise is guessing. Try it yourself while it is free.