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4 : 2;\n return `$${perMillionTokens.toFixed(decimals)}`;\n}\n\nfunction formatUsage(usage: Usage): string {\n const cost = usage.cost == null\n ? \"cost unknown\"\n : usage.cost === 0\n ? \"free\"\n : `$${usage.cost.toFixed(6)}`;\n\n return `${usage.promptTokens} in / ${usage.completionTokens} out (${usage.totalTokens} total) · ${cost}`;\n}\n\ntype PageProps = {\n providers: Provider[];\n model?: string;\n prompt?: string;\n reply?: string;\n usage?: Usage | null;\n error?: string;\n};\n\nfunction renderPage(\n { providers, model, prompt, reply, usage, error }: PageProps,\n) {\n const models = providers.flatMap((provider) => provider.models);\n const selected = models.find((m) => m.id === model) ?? models[0];\n\n return (\n <>\n {raw(\"\")}\n \n \n \n OpenRouter demo\n \n \n

OpenRouter demo

\n Quickly try out language models available on{\" \"}\n OpenRouter. This demo includes\n the top 100 models by usage in the last week, but you can easily\n {\" \"}\n \n remix this val\n {\" \"}\n to try more models.\n

\n \n {reply ?

{reply}

: null}\n {usage ?

Tokens: {formatUsage(usage)}

: null}\n {error ?

Error: {error}

OpenRouter demo

\n \n {reply ?

{reply}

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Tokens: {formatUsage(usage)}

: null}\n {error ?

Error: {error}

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Diff · v54