Grok 4.3 pricing & benchmarks
Released Apr 30, 2026 · served by 1 provider · ranked #38 by intelligence in our index
What Grok 4.3 is
Grok 4.3 is a reasoning model from xAI. It accepts text and image inputs with text output, and is suited for agentic workflows, instruction-following tasks, and applications requiring high factual...
- Model ID:
x-ai/grok-4.3 - Modality: text+image+file->text
- Tool calling: supported · Structured output: supported
Providers and prices for Grok 4.3
The same model costs different amounts depending on who serves it. Prices are per 1M tokens, cheapest first. Uptime and throughput are OpenRouter's rolling measurements, not vendor claims.
| Provider | Input | Output | Context | Quant | Uptime 24h | Throughput |
|---|---|---|---|---|---|---|
| xAIcheapest | $2.50 | $5.00 | 1M | — | 99.7% | — |
Grok 4.3 benchmark results
Design Arena head-to-head results, as reported through the OpenRouter model API.
| Category | Arena | Rank | Elo | Win rate |
|---|---|---|---|---|
| pptxslides | agents | #9 | 1071 | 32.5% |
| agentichtmlslides | agents | #10 | 1066 | 31.8% |
| agenticslides | agents | #10 | 1072 | 31.9% |
| agenticslides(html) | agents | #10 | 1066 | 31.7% |
| agenticslides(python-pptx) | agents | #10 | 1068 | 32.4% |
| python-pptxslides | agents | #17 | 1072 | 30.8% |
| agenticgamedev | agents | #19 | 1015 | 28.4% |
| htmlslides | agents | #19 | 1050 | 29.7% |
| webapps | agents | #23 | 1175 | 45.5% |
| androidnative | agents | #27 | 1057 | 28.2% |
| godotgamedev | agents | #29 | 1035 | 31.2% |
| mobileapps | agents | #29 | 1129 | 37.6% |
| fullstack | agents | #30 | 1057 | 31.2% |
| asciiart | models | #32 | 1180 | 46.4% |
| gamedev | models | #38 | 1233 | 49.4% |
| uicomponent | models | #38 | 1230 | 47.9% |
| codecategories | models | #41 | 1218 | 47.7% |
| dataviz | models | #43 | 1213 | 46.9% |
| website | models | #43 | 1219 | 47.8% |
| svg | models | #47 | 1133 | 41.2% |
| 3d | models | #52 | 1181 | 43.7% |
Cheaper models in the same class
Models scoring within 4 points of Grok 4.3 on the Intelligence Index, but with a lower output price.
FAQ
How much does the Grok 4.3 API cost?
$1.25 per 1M input tokens and $2.50 per 1M output tokens. A typical workload of 1M input + 300K output tokens costs about $2.00.
Is Grok 4.3 free?
No. It is a paid model starting at $1.25 per 1M input tokens, though some providers offer trial credits.
Which provider is cheapest for Grok 4.3?
xAI at $2.50 input / $5.00 output per 1M tokens.
Can I self-host Grok 4.3?
No. Grok 4.3 is closed-weight and only available through hosted APIs.