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SpaceXAI: Grok 4.3 (batch) API Pricing

SpaceXAI: Grok 4.3 (batch) is an API model from x-ai. It costs $1 per 1M input tokens and $2 per 1M output tokens, with cached input at $0.16. Its context window is 1,000,000 tokens with up to 900,000 output tokens. A workload of 10M input + 2M output tokens costs about $14 per month.
Input
$1
per 1M tokens
Output
$2
per 1M tokens
Cached input
$0.16
per 1M tokens
Context window
1M
1,000,000 tokens
Blended (80/20)
$1.2
per 1M tokens

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...

How much does SpaceXAI: Grok 4.3 (batch) cost for a real workload?

At 10M input + 2M output tokens per month, SpaceXAI: Grok 4.3 (batch) costs about $14 ($10 input + $4 output). Try your own volumes in the cost calculator.

What are cheaper alternatives to SpaceXAI: Grok 4.3 (batch)?

Compare SpaceXAI: Grok 4.3 (batch) with other models

SpaceXAI: Grok 4.3 (batch) vs SpaceXAI: Grok Build 0.1SpaceXAI: Grok 4.3 (batch) vs SpaceXAI: Grok 4.3SpaceXAI: Grok 4.3 (batch) vs SpaceXAI: Grok 4.20 Multi-AgentSpaceXAI: Grok 4.3 (batch) vs SpaceXAI: Grok 4.20SpaceXAI: Grok 4.3 (batch) vs SpaceXAI: Grok 4.7SpaceXAI: Grok 4.3 (batch) vs SpaceXAI: Grok 4.6

Frequently asked questions

How much does SpaceXAI: Grok 4.3 (batch) cost?

SpaceXAI: Grok 4.3 (batch) costs $1 per 1M input tokens and $2 per 1M output tokens (list price, snapshot October 21, 2026). At 10M input + 2M output tokens per month that is about $14.

What is the context window of SpaceXAI: Grok 4.3 (batch)?

SpaceXAI: Grok 4.3 (batch) has a context window of 1,000,000 tokens and can return up to 900,000 output tokens per response.

What are cheaper alternatives to SpaceXAI: Grok 4.3 (batch)?

Cheaper models include MoonshotAI: Kimi K2 0711 ($0.57 in / $2.3 out), Z.ai: GLM 4.5 ($0.6 in / $2.2 out), Moondream: Moondream 3 Preview ($0.3 in / $2.5 out). See the full list on this page.

Is SpaceXAI: Grok 4.3 (batch) free to use?

No. SpaceXAI: Grok 4.3 (batch) is a paid model at $1 input / $2 output per 1M tokens. 20 free models are listed on the free models page.

Provider: x-ai · Model ID: x-ai/grok-4.3:batch · Modality: text+image+file->text · Price snapshot October 21, 2026, refreshed daily. How we collect prices