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SpaceXAI: Grok 4.3 API Pricing
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 cost for a real workload?
At 10M input + 2M output tokens per month, SpaceXAI: Grok 4.3 costs about $17.5 ($12.5 input + $5 output). Try your own volumes in the cost calculator.
What are cheaper alternatives to SpaceXAI: Grok 4.3?
- StepFun: Step 5 Preview — $1 in / $2.7 out per 1M
- Elorian: Glimpse — $0.6 in / $3 out per 1M
- ByteDance Seed: Seed-2.0-Code — $0.5 in / $3 out per 1M
- Google: Nano Banana 2 (Gemini 3.1 Flash Image) — $0.5 in / $3 out per 1M
- Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) — $0.5 in / $3 out per 1M
- Google: Gemini 3 Flash Preview — $0.5 in / $3 out per 1M
Compare SpaceXAI: Grok 4.3 with other models
SpaceXAI: Grok 4.3 vs SpaceXAI: Grok Build 0.1SpaceXAI: Grok 4.3 vs SpaceXAI: Grok 4.3 (batch)SpaceXAI: Grok 4.3 vs SpaceXAI: Grok 4.20 Multi-AgentSpaceXAI: Grok 4.3 vs SpaceXAI: Grok 4.20SpaceXAI: Grok 4.3 vs SpaceXAI: Grok 4.7SpaceXAI: Grok 4.3 vs SpaceXAI: Grok 4.6
Frequently asked questions
How much does SpaceXAI: Grok 4.3 cost?
SpaceXAI: Grok 4.3 costs $1.25 per 1M input tokens and $2.5 per 1M output tokens (list price, snapshot October 21, 2026). At 10M input + 2M output tokens per month that is about $17.5.
What is the context window of SpaceXAI: Grok 4.3?
SpaceXAI: Grok 4.3 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?
Cheaper models include StepFun: Step 5 Preview ($1 in / $2.7 out), Elorian: Glimpse ($0.6 in / $3 out), ByteDance Seed: Seed-2.0-Code ($0.5 in / $3 out). See the full list on this page.
Is SpaceXAI: Grok 4.3 free to use?
No. SpaceXAI: Grok 4.3 is a paid model at $1.25 input / $2.5 output per 1M tokens. 20 free models are listed on the free models page.
Provider: x-ai · Model ID: x-ai/grok-4.3 · Modality: text+image+file->text · Price snapshot October 21, 2026, refreshed daily. How we collect prices