01 · Reasoning-first
Ox Alpha plans, checks itself, then answers — hard problems get worked through instead of guessed at.
A frontier reasoning model built for code, long-horizon agents, and a million tokens of context — fast, capable, and free to try.
oxalpha.com · 12 slides · press → to continue
No sign-up. No subscription. Chats aren't stored on their servers.
Ox Alpha plans, checks itself, then answers — hard problems get worked through instead of guessed at.
A free, no-login chat interface at oxalpha.com. Open the site and start — no account, no card, no waitlist.
Long-horizon software engineering, complex multi-step reasoning, and tasks that mix text with visual context.
Math, systems design, proofs, tricky edge cases — worked through, not pattern-matched.
Watch the reasoning stream in real time before the final answer lands.
Tuned for real workloads, not party tricks.
One window to hold it all
A million tokens of memory. Paste an entire codebase, a 500-page spec, or a week of transcripts — it keeps all of it in mind while it works.
Sustained software engineering: debugging, refactoring, and reasoning across large codebases without losing context.
Text, images, and video in — screenshots, diagrams, and UI reasoned about, not just described.
Native tools and tool_choice support for agents that actually do things.
Ask for JSON and get JSON — schema-shaped responses via response_format.
Keeps its footing across long, multi-step tasks instead of drifting off halfway.
Works in any modern browser — phone, tablet, and desktop alike.
On an independent run of 10 real-world coding tasks, Ox Alpha solved 8 — ahead of every frontier model it was lined up against.
| Task | Fable 5 | GLM-5 | GPT-5 | Grok 4 | Ox Alpha |
|---|---|---|---|---|---|
| anko-typed-variable-bindings | 4/4 | 4/4 | 2/4 | 1/4 | ✓ |
| arktype-json-schema-refs | 2/4 | 1/4 | 3/4 | 1/4 | ✓ |
| fastapi-deprecation-headers | 4/4 | 3/4 | 3/4 | 4/4 | ✓ |
| helm-unified-manifest-stream | 4/4 | 4/4 | 4/4 | 4/4 | ✓ |
| igel-persist-feature-schema | 3/4 | 3/4 | 0/4 | 4/4 | ✓ |
| katex-multicolumn-array-spans | 2/4 | 4/4 | 3/4 | 4/4 | ✓ |
| meriyah-explicit-resource-decl | 1/4 | 0/4 | 0/4 | 0/4 | ✓ |
| query-persist-restored-state | 2/4 | 3/4 | 1/4 | 2/4 | ✓ |
| scc-bounded-memory-spilling | 4/4 | 3/4 | 4/4 | 4/4 | ✕ |
| vulture-persistent-analysis-cache | 0/4 | 0/4 | 1/4 | 1/4 | ✕ |
| Mean | 65% | 62% | 52% | 62% | 80% |
Independent community benchmark — 10 real-world coding tasks. Reference models: passes out of 4 attempts per task. Ox Alpha: pass/fail. Third-party data, small sample — directional, not definitive.
Type a goal in plain English. Paste the whole file, log, or document — context is not a problem.
It thinks through the problem step by step, then streams back its answer in real time.
Refine with follow-ups. The whole conversation stays in its 1M-token memory.
No account needed — open the site and start chatting in your browser.
Completely free — no hidden fees, no credit card, no account, no subscription.
No personal information required. Conversations aren't stored on their servers.
Works in any modern browser — on phones, tablets, and desktops alike.
Messages are processed by the upstream model API to generate responses — avoid sharing sensitive data.
What sets it apart
A million tokens of context, reasoning you can watch, and native tool calling — wrapped in a free, no-login interface. A serious tool for long-horizon engineering work.
"Try it before the internet figures out what it is." — oxalpha.com
OX ALPHA · FRONTIER REASONING MODEL · oxalpha.com