Grok 4.3
xAIxAI frontier model with strong reasoning and real-time knowledge.
1M+ contextHigh intelligenceHigh valueStrong reasoningMultimodal vision
TextVisionTool useReasoningCode
Performance
Artificial Analysis — Intelligence Index· 2026-06-17| Intelligence Index | 53High · 5.3/10 |
Specifications
| Vendor | xAI |
| Family | Grok |
| Context | 1M · 750k words（≈ a novella） |
| Max output | 64K · 48k words（≈ a thesis）Below average |
| Released | 2026-04-09 |
| Open source | No |
| Tool use | ✓ |
Benchmark details (developers: Arena Elo / academic benchmarks)
| Arena Elo | 1428Above average |
Pricing across channels
per 1M tokens, USD
| Channel | Type | Input | Output | → |
|---|---|---|---|---|
| xAI API | Official | $1.25 | $2.50 | visit |
| OpenRouter | Aggregator | $1.25 | $2.50 | visitAd |
| OpenRouter (auto) | Aggregator | $1.25 | $2.50 | visitAd |
xAI Pricing· 2026-06-17
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