curl --request POST \
  --url https://api.together.ai/v1/rl/training-sessions/{session_id}/operations/training-checkpoint \
  --header 'Authorization: Bearer <token>' \
  --header 'Idempotency-Key: <idempotency-key>'

import requests

url = "https://api.together.ai/v1/rl/training-sessions/{session_id}/operations/training-checkpoint"

headers = {
    "Idempotency-Key": "<idempotency-key>",
    "Authorization": "Bearer <token>"
}

response = requests.post(url, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'Idempotency-Key': '<idempotency-key>', Authorization: 'Bearer <token>'}
};

fetch('https://api.together.ai/v1/rl/training-sessions/{session_id}/operations/training-checkpoint', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.together.ai/v1/rl/training-sessions/{session_id}/operations/training-checkpoint",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Idempotency-Key: <idempotency-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.together.ai/v1/rl/training-sessions/{session_id}/operations/training-checkpoint"

	req, _ := http.NewRequest("POST", url, nil)

	req.Header.Add("Idempotency-Key", "<idempotency-key>")
	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.together.ai/v1/rl/training-sessions/{session_id}/operations/training-checkpoint")
  .header("Idempotency-Key", "<idempotency-key>")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.together.ai/v1/rl/training-sessions/{session_id}/operations/training-checkpoint")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Idempotency-Key"] = '<idempotency-key>'
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

{
  "id": "550e8400-e29b-41d4-a716-446655440000",
  "status": "TRAINING_OPERATION_STATUS_PENDING",
  "output": {
    "checkpoint": {
      "id": "123e4567-e89b-12d3-a456-426614174000",
      "step": "42",
      "created_at": "2026-01-02T00:00:00Z",
      "registration": {
        "id": "ml_abc123",
        "revision_id": "rv_def456"
      }
    }
  },
  "error": {
    "code": "TRAINING_OPERATION_ERROR_CODE_TIMEOUT",
    "message": "Operation timed out"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "param": null,
    "code": null
  }
}