Grok Build 0.1 vs Grok 4.3
Side-by-side comparison of API pricing, specs, benchmarks, and capabilities
| Specification |
by xAI
|
by xAI
|
|---|---|---|
| Overview | ||
| Status | Current coding | Current flagship |
| Released | Feb 1, 2026 | Apr 30, 2026 |
| Pricing per million tokens | ||
| Input | $1.00/Mtok | $1.25/Mtok |
| Output | $2.00/Mtok | $2.50/Mtok |
| Blended avg | $1.25/Mtok | $1.56/Mtok |
| Specifications | ||
| Context window | 256K tokens | 1M tokens |
| Parameters | Proprietary | Proprietary |
| Speed (TPS) | — | — |
| Modalities | ||
| Input |
text
|
textimage
|
| Benchmarks sources: Artificial Analysis / xAI model card, Artificial Analysis | ||
| Independent composite scores measured for both models — each on its own scale | ||
| AA Intelligence Index | 40.7 | 37.9 |
| AA Agentic Index | 28.9 | 24.2 |
| AA-Omniscience Index (−100–100) | 6.4 | 18 |
| LMSYS Chatbot Arena | — | 1442.1 ELO |
| Per-benchmark results published for Grok 4.3 only — no independent per-benchmark scores exist for Grok Build 0.1 yet | ||
| Avg benchmark score | — | 72.4 |
| Perf / dollar | — | 46.3 |
| GPQA Diamond | — | 80 |
| SWE-Bench Verified | — | 65 |
| Humanity's Last Exam | — | 38 |
| ARC-AGI 2 | — | 42 |
| AIME 2025 | — | 85 |
| MMMLU | — | 86 |
| BFCL | — | 78 |
| HumanEval | — | 90 |
| MATH 500 | — | 88 |
| Providers | ||
| Available from |
xAI — $1.00/$2.00/Mtok
|
xAI — $1.25/$2.50/Mtok
|
Cost at scale
1M tokens · 50/50 input/output| Volume | Grok Build 0.1 | Grok 4.3 | Savings |
|---|---|---|---|
| 1M tokens | $1.25 | $1.56 | $0.31 (19.8%) |
| 10M tokens | $12.5 | $15.63 | $3.13 (20%) |
| 100M tokens | $125 | $156.25 | $31.25 (20%) |
| 1000M tokens | $1250 | $1562.5 | $312.5 (20%) |
When to pick which
distilled from the pricing and spec data above- cost dominates: $1.25/Mtok blended vs $1.56 — 20% less on the same 50/50 token mix
- you need the longer context: 1M tokens vs 256K (3.9×)
The cheaper option here — Grok Build 0.1 costs $1.25/Mtok blended on xAI.
Summary
Grok Build 0.1 by xAI costs $1.00/Mtok input and $2.00/Mtok output, with a 256K-token context window. It supports text 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 Build 0.1 is 20% cheaper than Grok 4.3.
The two aren't directly comparable on average benchmark score: Grok 4.3 has published per-benchmark results, while Grok Build 0.1 does not yet — it is measured today on independent composites (see the table above).
Note: Pricing is per million tokens. Actual costs vary with usage patterns, prompt caching, and batch discounts. Always verify against official provider pricing pages.