Grok 4.3
xAIProprietaryReasoningVerifiedReleased Apr 30, 2026Input: text, image, file
Overall score
53.1
Rank 85 of 222 · 43.0–63.2
Context window
1M
1,000,000 tokens
Price per 1M tokens
$1.25 in · $2.50 out
✓ Verified on xAI's pricing page
Blended price
$1.56
3:1 input:output tokens
Output speed
—
Not measured yet
Category scores
Scores per capability area with the model's rank among ranked models in that category.
- 1Instruction following#197.1
- 2Multimodal#2078.8
- 3Reasoning69.2
- 4Coding#10562.2
- 5Knowledge#6261.6
- 6Agentic & tool use#9857.8
- 7Math51.4
Benchmark results (10)
As reported in system cards, papers and public evaluations. Position compares this model with every other model reporting the same benchmark.
Agentic & tool use
| Gert Labs | 43.86 | #30 of 52 |
| ResearchClawBench | 12.4 | #19 of 19 |
Multimodal
| Design Arena Website | 1196 | #56 of 91 |
| MMMU-Pro | 78.1 | #21 of 48 |
Knowledge
| GPQA | 90.1 | #25 of 117 |
| HLE | 35.0 | #36 of 69 |
Math
| FrontierMath v2 (Tiers 1-3) | 42.807 | #45 of 64 |
| FrontierMath v2 (Tier 4) | 14.634 | #42 of 51 |
Coding
| SciCode | 47.3 | #9 of 23 |
Instruction following
| IFBench | 81.3 | #6 of 42 |
Pricing by source
USD per 1M tokens.
| Source | Input | Output | Cached in |
|---|---|---|---|
| ✓ Official (xAI) checked Oct 17, 2026 · grok-4.3 | $1.25 | $2.50 | — |
| BenchLM list price | $1.25 | $2.50 | $0.20 |
| OpenRouter x-ai/grok-4.3 | $1.25 | $2.50 | $0.20 |
Prompts under 200K tokens.
xAI's official July 2026 pricing page lists grok-4.3 at $1.25 input / $0.20 cached input / $2.50 output per million tokens below 200K tokens, with a 1M context window. Requests at or above 200K use the $2.50 / $0.40 / $5.00 long-context tier; BenchLM stores the short-context rate.
Arena ratings
Human-preference ratings from LMArena. Best-rated variant shown.
| Text | 1397 | #158 · 71.3K votes |
| WebDev (coding) | 1358 | #115 · 15K votes |
| Vision | 1229 | #80 · 27.9K votes |
| Search | 1166 | #30 · 128.4K votes |
Speed
Measured by us through OpenRouter (median of trials).
Not measured yet.
Related models
Similar score
- Kimi K2.553.0 · $1.20
- MiMo-V2.5-Pro53.0 · $0.54
- MiMo-V2-Pro52.9 · —
- GLM-5-Turbo53.2 · $1.90
- MAI-Thinking-153.3 · —