Grok 4 vs Grok 4.3
Side-by-side comparison of API pricing, specs, benchmarks, and capabilities
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by xAI
|
by xAI
|
|
|---|---|---|
| Overview | ||
| Status | Current flagship | Current flagship |
| Released | Jul 9, 2025 | Apr 30, 2026 |
| Pricing per million tokens | ||
| Input | $3.00/Mtok | $1.25/Mtok |
| Output | $15.00/Mtok | $2.50/Mtok |
| Blended avg | $9.00/Mtok | $1.88/Mtok |
| Specifications | ||
| Context window | 256K tokens | 1M tokens |
| Parameters | Proprietary | Proprietary |
| Speed (TPS) | — | — |
| Modalities | ||
| Input |
textimage
|
textimage
|
| Benchmarks from Vellum LLM Leaderboard | ||
| Avg benchmark score | 66.2 | 72.4 |
| Perf / dollar | 7.4 | 38.6 |
| GPQA Diamond | 75 | 80 |
| SWE-Bench | 55 | 65 |
| HumanEval | 87 | 90 |
| MATH 500 | 82 | 88 |
| Providers | ||
| Available from |
xAI — $3.00/$15.00/Mtok
|
xAI — $1.25/$2.50/Mtok
|
Cost at scale — 1M tokens (50/50 input/output)
| Volume | Grok 4 | Grok 4.3 | Savings |
|---|---|---|---|
| 1M tokens | $9 | $1.88 | $7.13 (79.2%) |
| 10M tokens | $90 | $18.75 | $71.25 (79.2%) |
| 100M tokens | $900 | $187.5 | $712.5 (79.2%) |
| 1000M tokens | $9000 | $1875 | $7125 (79.2%) |
Summary
Grok 4 by xAI costs $3.00/Mtok input and $15.00/Mtok output, with a 256K-token context window. It supports text, image input.
Grok 4.3 by xAI costs $1.25/Mtok input and $2.50/Mtok output, with a 1M-token context window. It supports text, image input.
On a blended cost basis, Grok 4.3 is 380% cheaper than Grok 4. It also has a larger context window.
On benchmarks, Grok 4.3 scores higher (72.4 vs 66.2) on average. In terms of value, Grok 4.3 has better performance per dollar (38.6 vs 7.4).
Note: Pricing is per million tokens. Actual costs vary with usage patterns, prompt caching, and batch discounts. Always verify against official provider pricing pages.