Grok 4.3
xAI's current flagship with configurable reasoning effort and very low output pricing. Live X/web search available as add-on.
Grok 4.3 strengths
- Very competitive output pricing
- Configurable reasoning effort
- Real-time X and web search integration
- 1M context
Pricing & context
| Context window | 1M tokens |
| Input price /1M | $1.25 ($0.20 cached) |
| Output price /1M | $2.50 |
| Modalities | text, image |
Cost guide: a typical call of ~10K input + 2K output tokens runs roughly $1.25 ($0.20 cached) × 0.01 + $2.50 × 0.002 — worth modelling against cheaper tiers before committing high-volume traffic.
When to choose Grok 4.3
Grok 4.3 is best for Reasoning and agentic tasks needing current/real-time info and low output costs. If your workload is more cost-sensitive, weigh it against Llama 4 Scout (~$0.08 (varies by host) input /1M) first.
Grok 4.3 FAQ
How much does Grok 4.3 cost?
Grok 4.3 is priced at $1.25 ($0.20 cached) per 1M input tokens and $2.50 per 1M output tokens (public API list price), with a 1M tokens context window.
What is Grok 4.3 best for?
Grok 4.3 by xAI is best for Reasoning and agentic tasks needing current/real-time info and low output costs.
Is Grok 4.3 multimodal?
Grok 4.3 supports text, image.
Tools that use Grok 4.3
Other models
All models →| 01 | GPT-5.5 | OpenAI | $5.00 | → |
| 02 | GPT-5.4 | OpenAI | $2.50 | → |
| 03 | GPT-5.4 mini | OpenAI | $0.75 | → |
| 04 | Claude Opus 4.8 | Anthropic | $5.00 | → |