Model comparison
Grok 4.5 vs Grok 4.3
SpaceXAIGrok 4.5
- Input
- $2.00
- Output
- $6.00
- Context
- not published
- Released
- 2026-07-09
- Input
- $1.25
- Output
- $2.50
- Context
- 1M
- Released
- 2026-04-30
Short answer
Grok 4.3 is cheaper on input tokens ($1.3 vs $2 per 1M, 1.6×).
Specs and pricing side by side
| Spec | Grok 4.5 | Grok 4.3 |
|---|---|---|
| Maker | SpaceXAI | xAI (Grok) |
| Released | 2026-07-09 | 2026-04-30 |
| Context window | not published | 1M |
| Input price | $2.00 | $1.25 |
| Output price | $6.00 | $2.50 |
| License | Proprietary | Proprietarysame |
| Weights | API only | API onlysame |
| Modalities | Text, Vision | Text, Visionsame |
Not published by either maker: max output, parameters, knowledge cutoff.
Benchmarks both models report
These two models have no benchmark in common in our registry, so there is no like-for-like score to compare. See each model’s own results: Grok 4.5, Grok 4.3.
Which one should you pick?
Pick Grok 4.5 if…
- Your use case is: reach for it for agentic coding inside Cursor and Grok Build on a Claude Opus-scale budget.
Pick Grok 4.3 if…
- Cost matters: input tokens cost 1.6× less ($1.3 vs $2 per 1M).
- Your use case is: long-context document and codebase analysis.
FAQ
Which is better, Grok 4.5 or Grok 4.3?
Grok 4.3 is cheaper on input tokens ($1.3 vs $2 per 1M, 1.6×). The better pick depends on whether you value benchmark scores, price per token, context length or openness for your workload.
How much cheaper is Grok 4.3?
Grok 4.5: $2.00 input, $6.00 output. Grok 4.3: $1.25 input, $2.50 output (list API prices as published by each maker).
Is Grok 4.5 newer than Grok 4.3?
Grok 4.5 was released 2026-07-09; Grok 4.3 was released 2026-04-30.