Grok 4.20 vs Grok 4.5: API Price & Benchmark Comparison (INR)
Side-by-side pricing
| Grok 4.20 | Grok 4.5 | |
|---|---|---|
| Input price / 1M tokens | ₹128.96 | ₹206.33 |
| Output price / 1M tokens | ₹257.92 | ₹619.00 |
| Context window | 2,000,000 | 500,000 |
| Provider | xAI | xAI |
Velona effective INR prices, refreshed every 6 hours (last: 2026-07-28T17:32:59Z).
When to pick which
Grok 4.5 costs more ($2/$6 vs $1.25/$2.50 per million, output is 2.4x pricier) and shrinks the context window from 2M to 500K tokens, in exchange for a clear step up in reasoning depth and coding quality. Grok 4.20 remains the value and long-context option: huge documents, extended agent histories, and output-heavy generation stay dramatically cheaper on it. Pick 4.5 when you are hitting quality ceilings on hard problems such as complex debugging, research synthesis, and multi-constraint planning. Pick 4.20 when volume, cost, or raw context capacity is what your workload actually stresses.
Benchmarks
Grok 4.20
Benchmarks
Independent scores from Artificial Analysis.
Grok 4.5
Benchmarks
Independent scores from Artificial Analysis.
Cost calculator for both models
Frequently asked questions
Which is cheaper: Grok 4.20 or Grok 4.5?
On input tokens, Grok 4.20 costs ₹128.96/1M and Grok 4.5 costs ₹206.33/1M through Velona. Output tokens: ₹257.92 vs ₹619.00 per 1M.
Can I switch between Grok 4.20 and Grok 4.5 without changing code?
Yes. Both are behind Velona's single gateway API. Change the model id in your request body and everything else stays the same, including your INR wallet.
Are these prices current?
Prices are regenerated every 6 hours from live provider pricing and the current USD→INR rate, so the figures on this page track what you'd actually be billed.
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