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SpaceXAI

Grok 4.3

mainstreamClosed

Grok 4.3 is a reasoning model from SpaceXAI. It accepts text and image inputs and produces text output, and is positioned for agentic workflows, instruction-following tasks, and applications requiring high factual accuracy. The model supports a 1M-token context window. Pricing is set at 1.25 USD per million input tokens and 2.5 USD per million output tokens, positioning it for cost-sensitive deployments at scale.

API Pricing

Input

$1.25

Output

$2.5

Cached input

—

Peak hours

—

USD / 1M tokens

※ Verified via OpenRouter live pricing (2026-11-02): $1.25 input / $2.5 output per million tokens.

Specifications

Context window
1M Tokens
Max output
—
Input modalities
Text
License
Closed

Capabilities & use cases

Key capabilities

  • Reasoning model from SpaceXAI
  • Text and image input, text output
  • 1M-token context window
  • Agentic workflow support
  • Instruction-following capability
  • High factual accuracy focus

Best for

  • Agentic workflows
  • Instruction-following tasks
  • Factual accuracy applications
  • Long-context processing
  • Multimodal input handling

Official links

Website ↗API platform ↗Pricing page ↗Open in comparator ↗

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FAQ

What does Grok 4.3 cost?
Grok 4.3 is priced at $2.5 output and $1.25 input (USD per 1M tokens)
How large is the context window of Grok 4.3?
Grok 4.3 has a 1M Tokens context window with up to — output.
Where can I access Grok 4.3?
Official channels: Website and API platform.

Data is refreshed daily and cross-checked against two independent sources; please confirm pricing and specs on the vendor page.