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Grok 4.3 (batch) API: toman pricing and code

x-ai/grok-4.3:batch

Image inputTool callingReasoningJSON outputFile input
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Input · per 1M tokens
346,219 toman
Output · per 1M tokens
692,439 toman
One 1,000-word request ≈
1,350 toman

You are billed for the usage the request actually reported. Prices follow the market. Cached input: 55,395 toman per 1M tokens. Web search: 1,731.10 toman per request.Pricing and top-ups

Grok 4.3 (batch) example: reading an image into JSON

The example is picked from this model's own capabilities. Drop in your key and it runs as is.

# tip: a data URI works too — base64 the file and prefix it with data:image/jpeg;base64,
curl https://api.uttapen.ir/v1/chat/completions \
  -H "Authorization: Bearer sk-up-…" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "x-ai/grok-4.3:batch",
    "messages": [{
      "role": "user",
      "content": [
        {"type": "text", "text": "Return only the invoice number and the total, as JSON."},
        {"type": "image_url", "image_url": {"url": "https://example.com/factor.jpg"}}
      ]
    }]
  }'
import base64, json
from openai import OpenAI

client = OpenAI(base_url="https://api.uttapen.ir/v1", api_key="sk-up-…")

img = base64.b64encode(open("factor.jpg", "rb").read()).decode()

resp = client.chat.completions.create(
    model="x-ai/grok-4.3:batch",
    messages=[{
        "role": "user",
        "content": [
            {"type": "text", "text": "Return the invoice number, the date and the total as JSON."},
            {"type": "image_url", "image_url": {"url": f"data:image/jpeg;base64,{img}"}},
        ],
    }],
    response_format={"type": "json_object"},
)
print(json.loads(resp.choices[0].message.content))
import OpenAI from "openai";
import { readFileSync } from "node:fs";

const client = new OpenAI({ baseURL: "https://api.uttapen.ir/v1", apiKey: "sk-up-…" });
const img = readFileSync("factor.jpg").toString("base64");

const resp = await client.chat.completions.create({
  model: "x-ai/grok-4.3:batch",
  messages: [{
    role: "user",
    content: [
      { type: "text", text: "Return the invoice number, the date and the total as JSON." },
      { type: "image_url", image_url: { url: `data:image/jpeg;base64,${img}` } },
    ],
  }],
  response_format: { type: "json_object" },
});
console.log(JSON.parse(resp.choices[0].message.content));

What is Grok 4.3 (batch) good for?

The id for Grok 4.3 (batch) in our API is "x-ai/grok-4.3:batch", served from xAI. Context is 1,000,000 tokens; past that you have to summarise the history yourself. A single response can run to 900,000 tokens. On price it sits in the "mid-range" band — cheaper than 185 and dearer than 199 of the other paid models in the catalogue.

Capabilities available on this id: it reads images directly, which makes it a real option for invoices, forms and screenshots; it takes files such as PDFs as input; it supports tool calling, so it can invoke your own functions with valid arguments; it returns schema-valid JSON through response_format, ready to hand to your code; it has a reasoning mode that pays off on multi-step problems, maths and debugging. All of it works through the standard parameters of the official OpenAI SDK — no custom client, no wrapper. Keep in mind that reasoning tokens are output tokens and do appear on the bill.

For a back-of-envelope figure: about 1,350 toman per 1,000-word exchange (346,219 in, 692,439 out, per 1M tokens). It supports cached input: repeated context is billed at 55,395 toman per 1M, which matters a lot if your system prompt is long. You are always charged for the usage the request actually reported, never for the estimate, and a failed request costs nothing.

The closest alternative with the same capabilities from a different provider is Seed 1.6: Grok 4.3 (batch) works out about 30% more expensive, and its context window is larger. Both run on the same key and the same code, so trying the other one is a single string change.

To make the figure concrete: 100,000 toman of credit buys roughly 74 thousand-word requests on Grok 4.3 (batch), and every 1,000 toman is about 741 words of round trip. A job with one million input tokens and one million output tokens comes to 1,038,658 toman in total. Filling this model's 1,000,000-token window costs 346,219 toman on the input side alone, which is the real reason to keep conversation history short.

This id gets confused with "x-ai/grok-4.3", because the underlying model is the same. The difference is the suffix: "batch" against the standard variant. On a thousand-word request this variant works out about 23% cheaper (1,350 against 1,688 toman).

xAI has 11 models in our catalogue; the cheapest is Grok 4.3 (batch) at 1,350 toman per thousand words and the dearest Grok Latest at 3,601. Among the less common parameters it accepts logprobs, reasoning_effort, top_logprobs — all through the standard request body. By context size the nearest option from another provider is Nova 2 Lite at 1,000,000 tokens.

What to use it for: product chatbots and internal assistants, where cost and quality have to balance, logic puzzles and code review, pulling text and fields out of images, agents that reach out to APIs and databases, extracting data against a fixed schema, analysing a long document or codebase in one request.

Provider's own description

Grok 4.3 is a reasoning model from SpaceXAI. It accepts text and image inputs with text output, and is suited for agentic workflows, instruction-following tasks, and applications requiring high factual...

Three real jobs, priced on this model

Each figure is derived from the prices above and moves when they do.

JobTokensCost
One chat turn with a medium history1,500 in + 400 out796 toman
Summarising a ten-page document4,000 in + 600 out1,800 toman
Classifying a thousand short rows120,000 in + 20,000 out55,395 toman

Other variants of this model

Same core model, different execution terms and different price. This page is the batch variant.

VariantModel idOutput / 1MContext
standardx-ai/grok-4.3865,5481,000,000

Put the variant's id verbatim in the model field; nothing else in your code changes.

Frequently asked

How do I call Grok 4.3 (batch) from Iran?
Sign up with your mobile number, top the wallet up in toman, create an API key, then in the official OpenAI SDK point base_url at https://api.uttapen.ir/v1 and set model to "x-ai/grok-4.3:batch". Nothing else in your code changes.
What does Grok 4.3 (batch) cost in toman?
346,219 toman per 1M input tokens and 692,439 toman per 1M output tokens; a 1,000-word request is around 1,350 toman. You pay for the usage that request actually reported, and a failed request costs nothing.
How much input does Grok 4.3 (batch) take?
Up to 1,000,000 tokens per request, roughly 750k words. A single answer can reach 900,000 tokens.
Does Grok 4.3 (batch) support streaming and tool calling?
Streaming (stream=true) works on every model here. This one supports tool calling in the standard OpenAI shape. Image input is accepted through image_url, as a data URI or a public URL. Structured output through response_format works too.