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grok-4.3 API status on xAI

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★★★★★★★★★★ 3.5 Benchmark-backed score

xAI's default Grok for chat, coding, agentic tools, and lower hallucination risk

Check providerxAI nativeReasoningTool callingJSON modePDF inputText
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Context window 1.0M
Max output 32K
API format xAI native
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AI Recommendation

Should you use grok-4.3?

grok-4.3 is listed for chat workloads and supports a 1.0M context window.

Check xAI's current endpoint status before integrating this listing. Use the alternatives table if the provider listing is unavailable.

Best for
  • Chat
Strengths & Weaknesses

Strengths

  • Long context window
  • Reasoning mode listed
  • Tool calling support
  • Structured JSON output

Watch outs

  • Current endpoint availability needs provider confirmation
  • Free-tier rate limits apply
  • Vision support is not listed
Benchmark Overview

Benchmark signals for grok-4.3

Measured data
Intelligence General reasoning and instruction following
37.6/100
Coding Programming and code generation
42.2/100
Agentic Tool use and multi-step tasks
24.1/100
Speed Observed generation speed
172 tok/s
Context Maximum listed context window
1.0M
Pricing

grok-4.3 pricing per 1M tokens

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Input $1.25 per 1M tokens
Output $2.5 per 1M tokens
Free access Check provider xAI
Rate limit Credit-based provider policy
Availability

grok-4.3 availability by provider

Current provider only

We only found this grok-4-3 listing on xAI in the current catalog. Use the related models section for nearby alternatives.

Provider Model listing Access Context API Limits
xAI grok-4.3 Check provider 1.0M Native Credit-based
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Typical Use Cases

grok-4.3 use cases

Chat

grok-4.3 is tagged for chat in this catalog.

FAQ

grok-4.3 free API FAQ

Is grok-4.3 free to use?

grok-4.3 appears in the free model catalog for xAI, but its current endpoint availability should be confirmed with the provider before use.

What is the grok-4.3 model ID?

The model ID shown in this catalog is grok-4-3.

What are the grok-4.3 free tier rate limits on xAI?

The listed free tier limit is Credit-based. Limits can change per account tier, so confirm against the provider dashboard.

What context window does grok-4.3 support?

The listed context window is 1.0M tokens with up to 32K output tokens.

More about grok-4.3

grok-4.3 — free model from xAI.

For API keys, setup steps, and provider-level limits, see the xAI provider page.