Model comparison
Grok 4.3 vs Grok 4.20
xAI (Grok)Grok 4.3
- Input
- $1.25
- Output
- $2.50
- Context
- 1M
- Released
- 2026-04-30
- Input
- $1.25 / 1M tokens
- Output
- $2.50 / 1M tokens
- Context
- 1M
- Released
- 2026-03
Short answer
Both charge the same $1.3 per 1M input tokens.
Specs and pricing side by side
| Spec | Grok 4.3 | Grok 4.20 |
|---|---|---|
| Maker | xAI (Grok) | xAI (Grok)same |
| Released | 2026-04-30 | 2026-03 |
| Context window | 1M | 1Msame |
| Input price | $1.25 | $1.25 / 1M tokens |
| Output price | $2.50 | $2.50 / 1M tokens |
| License | Proprietary | Proprietarysame |
| Weights | API only | API onlysame |
| Modalities | Text, Vision | Text, Visionsame |
| Knowledge cutoff | not published | November 2024 |
Not published by either maker: max output, parameters.
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 4.3, Grok 4.20.
Which one should you pick?
Pick Grok 4.3 if…
- Your use case is: long-context document and codebase analysis.
Pick Grok 4.20 if…
- Your use case is: complex math, science, and multi-step analytical problems that benefit from the reasoning variant.
FAQ
Which is better, Grok 4.3 or Grok 4.20?
Both charge the same $1.3 per 1M input tokens. The better pick depends on whether you value benchmark scores, price per token, context length or openness for your workload.
How do Grok 4.3 and Grok 4.20 pricing compare?
Grok 4.3: $1.25 input, $2.50 output. Grok 4.20: $1.25 / 1M tokens input, $2.50 / 1M tokens output (list API prices as published by each maker).
What are the context windows of Grok 4.3 and Grok 4.20?
Grok 4.3 offers 1M; Grok 4.20 offers 1M.
Is Grok 4.3 newer than Grok 4.20?
Grok 4.3 was released 2026-04-30; Grok 4.20 was released 2026-03.