Overview
Ox Alpha is a reasoning model designed for coding, sustained agentic work, and production workloads. It is suited for long-horizon software engineering, complex reasoning, and workflows that combine text with...
Our take
Ox Alpha is positioned for sustained agentic work and production workloads, particularly in software engineering. Its 1,048,576-token context window is notably larger than many alternatives, allowing for more extensive and complex codebases or documentation to be processed in a single interaction. Unlike some general-purpose chatbots such as ChatGPT or Claude, Ox Alpha emphasises a built-in reasoning mode and tool/function calling, suggesting an orientation towards structured problem-solving rather than free-form conversation. The inclusion of vision capabilities further broadens its utility beyond text-only models, enabling it to interpret image inputs. Availability and rate limits, however, are dependent on its upstream provider. This tool is ideal for developers and researchers who require a free-to-use model capable of handling large-scale, complex reasoning tasks, especially those involving both text and visual data.
How Ox Alpha stacks up
Among the 372 chatbots & llms tools in our directory, it ranks #3 of 361 on quality (9.2/10), 16% above the 361-tool average of 8.0, and it's one of the free-to-use options in the category.
Ox Alpha in depth
Ox Alpha, built by Stealth, sits in the chatbots & llms space and is completely free to use. Our editors rate it 9.2 out of 10 based on capability, ecosystem and value. It handles a context window of 1,048,576 tokens.
On the feature side, Ox Alpha brings 1,048,576-token context window, vision (image input), reasoning / chain-of-thought and tool / function calling. These are the capabilities that most shape day-to-day use and separate it from thinner alternatives.
Its biggest strength is completely free to use via the openrouter api, while the main trade-off to weigh is that availability and rate limits depend on the upstream provider. Keep both in mind when deciding whether it fits your workflow.
Ox Alpha is most often chosen for research and writing. If that matches your goals, it's a strong candidate to shortlist.
Key features
- ✓1,048,576-token context window
- ✓Vision (image input)
- ✓Reasoning / chain-of-thought
- ✓Tool / function calling
Pricing
Pros
- +Completely free to use via the OpenRouter API
- +Large 1,048,576-token context window, bigger than most models listed here
- +Built-in reasoning (chain-of-thought) mode for harder problems
- +Accepts images as input (vision-capable)
Cons
- −Availability and rate limits depend on the upstream provider
Who should use Ox Alpha
- →Anyone looking for a chatbots & llms tool from Stealth.
- →Teams and individuals focused on research and writing.
- →Users who want to try before they buy — there's a free tier.
- →People who value completely free to use via the openrouter api.
Who should look elsewhere
- →Those for whom availability and rate limits depend on the upstream provider is a dealbreaker.
Best for
10 Best Ox Alpha Alternatives in 2026
Ox Alpha is a strong chatbots & llms tool, but it is not the only option. Whether you are after a lower price, different features or a better fit for your workflow, here are the 10 best alternatives to Ox Alpha, ranked and compared.
Anthropic
Claude is Anthropic's family of AI assistants, known for long-context reasoning, careful writing and strong coding…
OpenAI
ChatGPT is OpenAI's flagship conversational AI, powering hundreds of millions of weekly users across web, mobile and…
Google DeepMind
Gemini is Google's natively multimodal model family, deeply integrated across Search, Workspace, Android and the Pixel…
Qwen
Qwen3.8 27B is an open-weight dense vision-language model from Qwen. It is suited for coding, professional workflows…
Gemini 3.7 Flash is a multimodal model from Google for fast agentic workflows, coding, and complex multi-step…
Meta
Muse Spark 1.2 is a reasoning model from Meta, designed for complex agentic tasks.
Qwen
Qwen3.8 Max is the flagship model in Alibaba's Qwen3.8 series, the general-availability successor to the Qwen3.8 Max…
Thinkingmachines
Inkling Small is an open-weight multimodal mixture-of-experts model from Thinking Machines Lab, with 12B active…
Qwen
Qwen3.7 Flash is a vision-language reasoning model from Alibaba. It is suited for multimodal agents, visual coding…
Anthropic
Fast-mode variant of [Opus 5](/anthropic/claude-opus-5) - identical capabilities with higher output speed at 2x pricing…
Ox Alpha vs top alternatives
A side-by-side look at how Ox Alpha stacks up against its closest rivals.
| Feature | Ox AlphaStealth | ClaudeAnthropic | ChatGPTOpenAI | GeminiGoogle DeepMind |
|---|---|---|---|---|
| Quality score | 9.2 / 10 | 9.6 / 10 | 9.5 / 10 | 9.2 / 10 |
| Starting price | Free | $20/mo | $20/mo | $20/mo |
| Free tier | Yes — Free tier available | Yes — Free tier available | Yes — Free tier available | Yes — Free tier available |
| API input price | $0 / 1M tokens | $10 / 1M tokens | $0.1 / 1M tokens | $0.1875 / 1M tokens |
| API output price | $0 / 1M tokens | $50 / 1M tokens | $0.6 / 1M tokens | $0.9375 / 1M tokens |
| Speed | — | Fast | Fast | Fast |
| Context window | 1,048,576 tokens | 200K tokens | 128K tokens | 1M-2M tokens |
| Categories | Chatbots & LLMs | Chatbots & LLMs, Coding, Writing | Chatbots & LLMs, Coding, Writing | Chatbots & LLMs, Coding, Writing |
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Frequently asked questions
Q. Is Ox Alpha free?
Yes — Ox Alpha offers a free tier. Paid plans start at Free.
Q. How much does Ox Alpha cost?
Ox Alpha starts at Free. API usage is around $0 per 1M input tokens and $0 per 1M output tokens.
Q. What is Ox Alpha best for?
Ox Alpha is best suited to research and writing, within the chatbots & llms category.
Q. What are the best Ox Alpha alternatives?
Popular alternatives to Ox Alpha include Claude, ChatGPT, Gemini and Qwen: Qwen3.8 27B. Each trades off price, quality and ecosystem differently.
Q. Is there a free alternative to Ox Alpha?
Yes. Claude, ChatGPT, Gemini offer a free tier, making them good starting points if you want to avoid an upfront subscription.
Q. Why switch from Ox Alpha?
Common reasons include pricing, specific feature gaps (Availability and rate limits depend on the upstream provider), data-privacy requirements, or simply wanting a tool that fits your stack better.
How we rate AI tools
Our quality score weighs capability on real tasks, breadth of features and integrations, pricing and value, and how actively the tool is maintained. Scores are editorial guidance, not benchmarks — always trial a tool on your own workflow before committing. Pricing and features change frequently, so verify current details on the official site.
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