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Grok 4.3

Ingresso:$1/M
Uscita:$2/M
Rilasciato:May 6, 2026

Excels at agentic reasoning, knowledge work, and tool use.

Nuovo
Uso commerciale

Playground per Grok 4.3

Esplora il Playground di Grok 4.3 โ€” un ambiente interattivo per testare modelli ed eseguire query in tempo reale. Prova prompt, regola parametri e itera istantaneamente per accelerare lo sviluppo e convalidare i casi d'uso.

Technical Specifications of Grok-4.3

ItemGrok-4.3
Model IDgrok-4.3
ProviderxAI
Release dateApril 30, 2026
Model typeReasoning-focused LLM
Input typesText, Image
Output typesText
Context window1,000,000 tokens
Knowledge cutoffDecember 2025
Key capabilitiesReasoning, tool use, function calling, multimodal, structured outputs
API accessYes (console, API, CLI)
ReasoningYes, xAI says โ€œThe model thinks before responding.โ€
Rate limits1,800 requests/minute; 10,000,000 tokens/minute

What Grok 4.3 is

Grok 4.3 is xAIโ€™s reasoning-focused Grok model for production API work where long context, external tools, and structured answers matter. Explicitly recommends it as the replacement for several older Grok 4 and Grok 3-era reasoning models, and says it delivers improved agentic coding and web development capability.

Main features

1) Agentic tool use

Grok 4.3 supports function calling, which lets it connect to external tools, APIs, and systems. This matters for workflows like database lookups, internal search, calculations, ticket routing, and multi-step automation. xAIโ€™s function-calling docs also show that the model can return multiple tool calls in a single response when parallel calling is enabled.

2) Structured outputs

xAI lists structured outputs as a native capability, which makes the model easier to integrate into software pipelines where a predictable JSON schema or a fixed response format is important.

3) Long-context reasoning

With a 1M-token context window, Grok 4.3 is designed for large documents, long conversations, codebases, and multi-file analysis. xAI also notes special pricing for requests that exceed the 200K context threshold, which signals that the model is expected to handle very large prompts in production settings.

  • Artificial Analysis Intelligence Index: Score ~53, well above average (~35)
  • Global ranking: Top-tier (#10โ€“#11 among evaluated models)
  • Speed: ~100 tokens/sec (above median)

๐Ÿ‘‰ Interpretation: Grok-4.3 is a frontier-level reasoning model, competitive with top-tier models in logic, coding, and structured reasoning tasks.

Grok 4.3 vs GPT 5.5 vs Claude 4.6

ModelPositioningContext windowInput / output pricingNotable strengths
Grok 4.3xAI flagship for agentic reasoning and tool use1M$1.25 / $2.50 per 1M tokensFunction calling, structured outputs, three reasoning levels, strong price-performance.
Grok 4.20 reasoningxAIโ€™s larger-context reasoning option2M$1.25 / $2.50 per 1M tokensBigger context than Grok 4.3, still aimed at reasoning-heavy use.
OpenAI GPT-5.5OpenAI flagship for complex reasoning and coding1M$5 / $30 per 1M tokensText and image input, web search, file search, computer use.
Anthropic Claude Sonnet 4.6Anthropicโ€™s speed-intelligence balance model1M on API beta$3 / $15 per 1M tokensExtended thinking, adaptive thinking, broad platform availability.

Grok-4.3 is best when reasoning quality + large context + tool use matter more than ultra-low latency.

Best-fit use cases for Grok 4.3(Alternative of Grok code fast )

  • Long-form assistant workflows that need memory across many turns.
  • Internal copilots that must call tools, return JSON, and keep a strict schema.
  • Coding assistants for refactors, debugging, and web-dev tasks.
  • Research assistants that combine model reasoning with live search tools.
  • Workflow automation agents that need consistent instruction following.

How to access and use Grok 4.3 API

Step 1: Sign Up for API Key

Log in toย cometapi.com. If you are not our user yet, please register first. Sign into yourย CometAPI console. Get the access credential API key of the interface. Click โ€œAdd Tokenโ€ at the API token in the personal center, get the token key: sk-xxxxx and submit.

Step 2: Send Requests toย Grok 4.3ย API

Select the โ€œgrok-4.3โ€ endpoint to send the API request and set the request body. The request method and request body are obtained from our website API doc. Our website also provides Apifox test for your convenience. Replace <YOUR_API_KEY> with your actual CometAPI key from your account.ย Where to call it:ย ย ย Chatย format.

Insert your question or request into the content fieldโ€”this is what the model will respond to . Process the API response to get the generated answer.

Step 3: Retrieve and Verify Results

Process the API response to get the generated answer. After processing, the API responds with the task status and output data.

FAQ

Prezzi per Grok 4.3

Esplora i prezzi competitivi per Grok 4.3, progettato per adattarsi a vari budget e necessitร  di utilizzo. I nostri piani flessibili garantiscono che paghi solo per quello che usi, rendendo facile scalare man mano che i tuoi requisiti crescono. Scopri come Grok 4.3 puรฒ migliorare i tuoi progetti mantenendo i costi gestibili.

Comet Price (USD / M Tokens)Official Price (USD / M Tokens)Discount
Ingresso:$1/M
Uscita:$2/M
Ingresso:$1.25/M
Uscita:$2.5/M
-20%

Codice di esempio e API per Grok 4.3

Accedi a codice di esempio completo e risorse API per Grok 4.3 per semplificare il tuo processo di integrazione. La nostra documentazione dettagliata fornisce una guida passo dopo passo, aiutandoti a sfruttare appieno il potenziale di Grok 4.3 nei tuoi progetti.

#!/bin/bash
# Get your CometAPI key from https://www.cometapi.com/console/token, and paste it here

curl "https://api.cometapi.com/v1/chat/completions" \
  -H "Authorization: Bearer $COMETAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "grok-4.3",
    "messages": [
      {"role": "system", "content": "You are a helpful assistant."},
      {"role": "user", "content": "Hello!"}
    ]
  }'

cURL Code Example

#!/bin/bash
# Get your CometAPI key from https://www.cometapi.com/console/token, and paste it here

curl "https://api.cometapi.com/v1/chat/completions" \
  -H "Authorization: Bearer $COMETAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "grok-4.3",
    "messages": [
      {"role": "system", "content": "You are a helpful assistant."},
      {"role": "user", "content": "Hello!"}
    ]
  }'

Python Code Example

from openai import OpenAI
import os

# Get your CometAPI key from https://www.cometapi.com/console/token, and paste it here
COMETAPI_KEY = os.environ.get("COMETAPI_KEY") or "<YOUR_COMETAPI_KEY>"
BASE_URL = "https://api.cometapi.com/v1"

client = OpenAI(base_url=BASE_URL, api_key=COMETAPI_KEY)

completion = client.chat.completions.create(
    model="grok-4.3",
    messages=[
        {"role": "system", "content": "You are a helpful assistant."},
        {"role": "user", "content": "Hello!"},
    ],
)

print(completion.choices[0].message.content)

JavaScript Code Example

import OpenAI from "openai";

// Get your CometAPI key from https://www.cometapi.com/console/token, and paste it here
const COMETAPI_KEY = process.env.COMETAPI_KEY || "<YOUR_COMETAPI_KEY>";
const BASE_URL = "https://api.cometapi.com/v1";

const client = new OpenAI({
  apiKey: COMETAPI_KEY,
  baseURL: BASE_URL,
});

async function main() {
  const completion = await client.chat.completions.create({
    model: "grok-4.3",
    messages: [
      { role: "system", content: "You are a helpful assistant." },
      { role: "user", content: "Hello!" },
    ],
  });

  console.log(completion.choices[0].message.content);
}

main();

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