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SpaceXAI: Grok 4.3 (batch) vs SpaceXAI: Grok 4.5: API Pricing Compared

Comparing SpaceXAI: Grok 4.3 (batch) and SpaceXAI: Grok 4.5: on combined input+output list price, SpaceXAI: Grok 4.3 (batch) is cheaper at $3 vs $8 per 1M tokens — a difference of $5 (62%). SpaceXAI: Grok 4.3 (batch) costs $1 in / $2 out with a 1,000,000-token context; SpaceXAI: Grok 4.5 costs $2 in / $6 out with a 500,000-token context.
SpaceXAI: Grok 4.3 (batch)SpaceXAI: Grok 4.5
Input /1M$1$2
Output /1M$2$6
Cached input /1M$0.16$0.3
Context window1,000,000500,000
Max output tokens900,000450,000
Cost @ 10M in + 2M out / mo$14$32

Estimate your own workload in the cost calculator, or open the full pages for SpaceXAI: Grok 4.3 (batch) and SpaceXAI: Grok 4.5.

Frequently asked questions

Which is cheaper, SpaceXAI: Grok 4.3 (batch) or SpaceXAI: Grok 4.5?

SpaceXAI: Grok 4.3 (batch) is cheaper on combined list price: $3 vs $8 per 1M tokens (input + output). At 10M input + 2M output tokens per month, SpaceXAI: Grok 4.3 (batch) costs $14 and SpaceXAI: Grok 4.5 costs $32.

Which has the larger context window, SpaceXAI: Grok 4.3 (batch) or SpaceXAI: Grok 4.5?

SpaceXAI: Grok 4.3 (batch) has a context window of 1,000,000 tokens; SpaceXAI: Grok 4.5 has 500,000 tokens. The larger one is SpaceXAI: Grok 4.3 (batch).

Price snapshot October 21, 2026, refreshed daily.