Grok 4.3: AI price, benchmarks
Grok 4.3 by xAI: 90.0 overall (preliminary), $2.19/M blended cost, 1M context. New 2026-04 release.
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Grok 4.3 quick verdict
Grok 4.3 is a 2026-04 xAI model in the Benchquill record with a preliminary 90.0 overall score, $2.19/M blended cost, and 1M context window. Its full Benchquill sub-scores are pending review. xAI flagship (released Apr 30 2026). Artificial Analysis Intelligence Index 53 — near-frontier at aggressive pricing. Always-on reasoning, ~187 tok/s, cached input $0.20/M.
Score, price, and context
Closest alternatives to compare
| Rank | Model | Provider | Overall | Blended cost | Context |
|---|---|---|---|---|---|
| 1 | GPT-5.5 | OpenAI | 94.6 | $23.75/M | 1.05M |
| 2 | Claude Opus 4.8 | Anthropic | 94.0 | $20.00/M | 1M |
| 3 | Claude Opus 4.7 | Anthropic | 93.8 | $20.00/M | 1M |
| 4 | Gemini 3.1 Pro Preview | 92.4 | $9.50/M | 1M |
What to verify before using Grok 4.3
- Check official xAI pricing before committing budget; this is a recent release and prices can change.
- Benchquill sub-scores for this model are still preliminary — run your own coding, reasoning, and math prompts before relying on it.
- Confirm data handling, retention, and human-review requirements before sending private or regulated material.
- Use the comparison page and Benchquill methodology to review score sources and tradeoffs.
Grok 4.3 benchmark scores and pricing
Grok 4.3 is a 2026-04 release with a preliminary Benchquill overall of 90.0 (pending full review). xAI flagship (released Apr 30 2026). Artificial Analysis Intelligence Index 53 — near-frontier at aggressive pricing. Always-on reasoning, ~187 tok/s, cached input $0.20/M. Blended cost $2.19/M, 1M context, closed.
| Metric | Score / value |
|---|---|
| Overall (Benchquill composite) | 90.0 / 100 (preliminary) |
| Coding | Pending review |
| Reasoning | Pending review |
| Math | Pending review |
| Vision / multimodal | Pending review |
| Speed (estimated) | 187 tokens/sec |
| Input price | $1.25 / 1M tokens |
| Output price | $2.50 / 1M tokens |
| Blended price | $2.19 / 1M tokens |
| Context window | 1M |
| License | Closed |
| Modalities | Text, Vision |
| Released | 2026-04 |
| Provider | xAI |
Preliminary estimate (June 2026) - full Benchquill sub-scores pending review; figures from vendor/public benchmarks. Benchmarks tracked across Benchquill: SWE-Bench Verified, HumanEval, LiveBench, BFCL v3, GPQA Diamond, MMLU, MMMU, AIME 2025, MATH-500.