go get github.com/hanzoai/go-sdk

import (
    "github.com/hanzoai/go-sdk"
    "github.com/hanzoai/go-sdk/option"
)

export HANZO_API_KEY="hk-..."   # from console.hanzo.ai

package main

import (
    "context"
    "fmt"

    "github.com/hanzoai/go-sdk"
    "github.com/hanzoai/go-sdk/option"
)

func main() {
    client := hanzoai.NewClient(
        option.WithAPIKey("hk-your-key"), // or HANZO_API_KEY
    )

    resp, err := client.Chat.Completions.New(context.TODO(), hanzoai.ChatCompletionNewParams{
        Model: hanzoai.F("zen5"),
        Messages: hanzoai.F([]hanzoai.ChatCompletionMessageParamUnion{
            hanzoai.UserMessage("Explain quantum computing"),
        }),
    })
    if err != nil {
        panic(err)
    }
    fmt.Println(resp.Choices[0].Message.Content)
}

stream := client.Chat.Completions.NewStreaming(ctx, hanzoai.ChatCompletionNewParams{
    Model: hanzoai.F("zen5-coder"),
    Messages: hanzoai.F([]hanzoai.ChatCompletionMessageParamUnion{
        hanzoai.UserMessage("Write a haiku about AI"),
    }),
})
for stream.Next() {
    chunk := stream.Current()
    if len(chunk.Choices) > 0 {
        fmt.Print(chunk.Choices[0].Delta.Content)
    }
}
if stream.Err() != nil {
    panic(stream.Err())
}