Docs · Comparisons
TopxAI vs OpenRouter: what is the same and what differs
Compare current model and route prices, including OpenRouter discounts: selected TopxAI shared routes cost less, Sol matches, and Kimi can cost more.
Both services put many providers' models behind one endpoint and one balance. The differences are in how many models, what a token costs, and what else is on offer. This page states what each side publishes; OpenRouter's numbers are from their documentation on 2026-09-19 and may change.
Side by side
TopxAI OpenRouter
Models 13, six lines: Claude, GPT, Grok, GLM (private deployment), Kimi, Jev Hundreds, from most providers
Token price Claude/GPT/Grok shared routes at 50% of the listed provider reference, their official routes at 90%; Kimi 80%; Jev 107%; GLM is a different private fine-tune Varies by provider, route and promotion; not always the model vendor's list price
Fee on top-up None: the amount credited is the amount you enter (regional tax may be added at checkout) Standard lists a 5.5% platform fee; payment conditions and other plans differ (pricing)
API formats OpenAI Chat Completions and Responses, Anthropic Messages, Images, video, /v1/systemone OpenAI-style API; see their docs for what else is supported
Routing Auto route picks the lowest-priced of TopxAI's own routes for the model; per-route keys pin a line Routes across providers, with fallbacks and provider preferences
Prompts and completions Relayed in memory, never stored Their privacy page describes logging options and zero-retention routes
Extras Usage log per request with route and charge; gift cards; shared sign-in with topxea.com Web search plugin, presets, app attribution, provider analytics
Free start $0.50 credit at sign-up Free-tier models
Current price examples
Checked on September 19, 2026 against the TopxAI price API, OpenRouter model API and the linked provider pages. Prices below are USD per million tokens, shown as input / output, for standard online requests below any long-context threshold. They exclude platform fees, taxes, cache tokens and tool charges; Batch and Flex are separate service tiers.
Model TopxAI route TopxAI input / output OpenRouter standard input / output Comparison
Claude Sonnet 5 Shared $1 / $5 $2 / $10 TopxAI 50% lower
Claude Opus 5 Shared $2.50 / $12.50 $5 / $25 TopxAI 50% lower
Claude Fable 5.1 Shared $5 / $25 $10 / $50 TopxAI 50% lower
GPT-6 Astra Shared $5 / $25 $10 / $50 TopxAI 50% lower
GPT-5.6 Sol Shared $2 / $10 $2 / $10 Same token price during OpenRouter's current promotion
Grok 4.6 Shared $1 / $3 $2 / $6 TopxAI 50% lower
Kimi K3 Official $2.40 / $12 From $1.70 / $8.50 TopxAI about 41% higher than the lowest listed route
OpenRouter's Sol page lists a 50%-off OpenAI standard endpoint; its cheaper Flex endpoint is not standard routing. Its Kimi page lists Relace at $1.70 / $8.50 and Moonshot AI at $3 / $15. TopxAI's Kimi official route is 20% below that Moonshot route, but not below every third-party host. A lower advertised rate does not establish equal throughput, availability or hosting conditions.
The 50% saving applies to the specified shared routes and comparison prices, not every TopxAI model or route. Auto routing can select a different-priced route; inspect the billed route in the usage log. Provider Batch/Flex discounts, cache hit rates, long-context tiers and retries can change an actual workload's bill. These are public price comparisons, not a paid performance or billing benchmark. Recheck the live ledgers before purchasing.
Where TopxAI is the better fit
You use a handful of the big models and the price per token matters: on the shared pool, claude-sonnet-5 is $1 input / $5 output per 1M tokens against a $2 / $10 list price (model page).
You want the Anthropic Messages format, not only an OpenAI-style one, for Claude Code, the Anthropic SDK or any tool that speaks it.
You want a fixed, published price per route and a log row per request that shows which route it took.
You want nothing stored: no prompt, no completion, no file.
Where OpenRouter is the better fit
You need a model TopxAI does not sell: an open-weight model, a small vendor, or the latest release before it reaches the catalogue.
You want cross-provider fallbacks or a preference for a particular hosting provider.
You rely on their extras: web search in the request, presets, or per-app analytics.
Your chosen provider has a lower current price for the model you need, such as the Kimi K3 routes above; compare the actual route, not only the vendor's reference price.
Using both
Nothing prevents it. Both are OpenAI-compatible, so a client that takes a base URL and a model id switches with two values. A LiteLLM or opencode configuration can list TopxAI models next to OpenRouter models under separate provider names (LiteLLM page, opencode page).
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