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Grok 4.3 (high)

SpaceXAIGrokProprietary

Description

Grok 4.3 is xAI's newest flagship general-purpose model. xAI describes it as the most intelligent and fastest model it has built, with a 1 million token context window, reasoning support, function calling, structured outputs, prompt caching, and industry-leading non-hallucination, agentic tool calling, and instruction-following capabilities.

Release Date
2026-04-30
Parameters
—
Context Length
1.0M
Modalities
image, pdf, text

Capability Radar

28
general
43
coding
90
reasoning
65
science
40
agents
80
multimodal

Rankings

Domain#RankScoreSource
Agentic Capability76
42.0
LS
Code Ranking232
61.0
AA
General Ranking83
69.0
AA
Science99
74.0
AA

Benchmark Scores (LLM Stats)

(LLM Stats (zeroeval))

Agents

Finance Agent v237.7%

AA Evaluation Indices

(Artificial Analysis)
Tau2(Sierra + U Toronto + Vector Institute (2025))
97.7
Gpqa(NYU + Cohere + Anthropic (2023))
90.1
Ifbench(Google Research (2023))
81.3
Lcr(Artificial Analysis)
73.0
Scicode(UIUC + Argonne National Lab (2024))
48.3
Coding Index(Artificial Analysis)
42.2
Terminalbench V2 1
39.7
Terminalbench Hard(Stanford × Laude Institute (2026))
37.9
Hle(Center for AI Safety + Scale AI (2025))
37.2
Intelligence Index(Artificial Analysis)
24.9
Tau Banking
12.4
Terminalbench V4 0
0.0

LLM Stats Category Scores

(LLM Stats (zeroeval))
Reasoning
40
Finance
40
General
40
Agents
40

Pricing

Input Price$1.25 / 1M tokens
Output Price$2.5 / 1M tokens
Blended Price (3:1)$1.563 / 1M tokens
Cache Read Price$0.2 / 1M tokens

Speed

Tokens/sec0.0
Time to First Token0.00s
Time to Answer0.00s

Provider Price Ranking

Provider Price Ranking

5 providers

Cheapest: xAIMost Expensive: Venice AI
ProviderInputOutput
1xAICheapest
$0
$0
2SpaceXAIPRIMARY
$1.25
$2.5
3FrogBot
$1.25
$2.5
4DevPass (LLM Gateway)
$1.25
$2.5
5Venice AI
$1.42
$2.83

Compare pricing across different API providers for this model.

External Sources