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Grok 4.3 benchmarks, ranks and price

Where Artificial Analysis, LiveBench, LMArena and Berkeley BFCL place Grok 4.3, what it costs through OpenRouter and Vercel AI Gateway, and the models either side of it on the consensus.

Updated Oct 1, 2026Full leaderboardSources and method

Read Oct 1, 2026

#59of 85

on the LLM leaderboard, with a consensus score of 41 across 3 leaderboards.

Source: Artificial Analysis, LiveBench, LMArena and Berkeley BFCL, combined by Rank.ai.

By leaderboard

Where each leaderboard places Grok 4.3

Artificial Analysis

#25of 51

Score 24.9. Best run: x-ai/grok-4.3.

Intelligence Index: a composite of reasoning, knowledge, maths and coding evaluations.

LiveBench

#34of 34

Score 62.2. Best run: Grok 4.3.

Contamination-limited questions refreshed each release: reasoning, maths, coding, data analysis, language.

LMArena

#32of 79

Score 1442. Best run: grok-4.3.

Blind head-to-head human votes, style controlled.

Berkeley BFCL

Not measured by Berkeley BFCL.

Function calling and tool use, single turn to multi turn and web search.

Price and context

$1.56

OpenRouter: $1.25 in, $2.50 out Context window 1M tokens. LiveBench cost per solved task $0.061.

Nearby

The models either side of Grok 4.3

  1. #56gpt-5-nano-high42
  2. #57Kimi K2.7 Code41
  3. #58qwen3-32b41
  4. #59Grok 4.341
  5. #60DeepSeek V3.1 Terminus40
  6. #61R138
  7. #62GPT-5.4 Nano38

Questions about Grok 4.3

How good is Grok 4.3?
Grok 4.3 ranks #59 of 85 models on the Rank.ai LLM leaderboard, with a consensus score of 41 out of 100 across 3 leaderboards.
Is Grok 4.3 better than qwen3-32b?
Not on the consensus: qwen3-32b scores 41 to Grok 4.3's 41. Compare them source by source below, since the leaderboards test different things.
Is Grok 4.3 better than DeepSeek V3.1 Terminus?
On the consensus, yes: 41 to 40.
How much does Grok 4.3 cost?
$1.25 per million input tokens and $2.50 per million output tokens on OpenRouter, the cheaper listing we read. Blended at three input tokens to one output, that is $1.56 per million.
Is Grok 4.3 good for coding?
It scores 42.2 on the Artificial Analysis Coding Index, placing it #36 for coding among the models on this leaderboard.

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