x-aiListed Apr 30, 2026

SpaceXAI: Grok 4.3

Grok 4.3 is a reasoning model from SpaceXAI. It accepts text and image inputs with text output, and is suited for agentic workflows, instruction-following tasks, and applications requiring high factual...

Context window1M
Max output900K
Provider endpoints6
Benchmark results0
Measured performance

Benchmark results

All leaderboards ↗
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No published results in this index yet

Scores appear here when an evaluation matches this exact model.

Access & cost

Prices across providers

10 quotes

Your token mix

USD · listed token rates

ExperientialStandard list rate
$1.875
xAI · via OpenRouterxai/zdr · prompt ≤ 200000 tokens
$1.875
xAI · via OpenRouterxai · prompt ≤ 200000 tokens
$1.875
xAI · via OpenRouterxai/zdr/priority · tier=priority · prompt ≤ 200000 tokens
$3.75
xAI · via OpenRouterxai/priority · tier=priority · prompt ≤ 200000 tokens
$3.75

OpenRouter

Catalog quote
Input
$1.25
Output
$2.50
Cached input
$0.20
USD / 1M tokens
1M context900K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDx-ai/grok-4.3

Experiential

Standard list rate

Input
$1.25
Output
$2.50
Cached input
$0.20
USD / 1M tokens

Catalog list rate. Plan allowances and temporary discounts are separate.

1M contextPrice source ↗Checked Oct 17, 2026
Endpoint IDgrok-4.3

xAI

via OpenRouter

xai/zdr · prompt ≤ 200000 tokens

Input
$1.25
Output
$2.50
Cached input
$0.20
USD / 1M tokens

Web search $0.005/search

1M context900K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDx-ai/grok-4.3::xai/zdr

xAI

via OpenRouter

xai/zdr · prompt over 200000 tokens · rate option 1

Conditional rate
Input
$2.50
Output
$5.00
Cached input
$0.40
USD / 1M tokens

Web search $0.005/search · A rate applies when all its listed conditions match. Dates and times use UTC.

1M context900K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDx-ai/grok-4.3::xai/zdr

xAI

via OpenRouter

xai · prompt ≤ 200000 tokens

Input
$1.25
Output
$2.50
Cached input
$0.20
USD / 1M tokens

Web search $0.005/search

1M context900K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDx-ai/grok-4.3::xai

xAI

via OpenRouter

xai · prompt over 200000 tokens · rate option 1

Conditional rate
Input
$2.50
Output
$5.00
Cached input
$0.40
USD / 1M tokens

Web search $0.005/search · A rate applies when all its listed conditions match. Dates and times use UTC.

1M context900K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDx-ai/grok-4.3::xai

xAI

via OpenRouter

xai/zdr/priority · tier=priority · prompt ≤ 200000 tokens

Input
$2.50
Output
$5.00
Cached input
$0.40
USD / 1M tokens

Web search $0.005/search

1M context900K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDx-ai/grok-4.3::xai/zdr/priority

xAI

via OpenRouter

xai/zdr/priority · tier=priority · prompt over 200000 tokens · rate option 1

Conditional rate
Input
$5.00
Output
$10.00
Cached input
$0.80
USD / 1M tokens

Web search $0.005/search · A rate applies when all its listed conditions match. Dates and times use UTC.

1M context900K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDx-ai/grok-4.3::xai/zdr/priority

xAI

via OpenRouter

xai/priority · tier=priority · prompt ≤ 200000 tokens

Input
$2.50
Output
$5.00
Cached input
$0.40
USD / 1M tokens

Web search $0.005/search

1M context900K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDx-ai/grok-4.3::xai/priority

xAI

via OpenRouter

xai/priority · tier=priority · prompt over 200000 tokens · rate option 1

Conditional rate
Input
$5.00
Output
$10.00
Cached input
$0.80
USD / 1M tokens

Web search $0.005/search · A rate applies when all its listed conditions match. Dates and times use UTC.

1M context900K max outputPrice source ↗Checked Oct 17, 2026
Endpoint IDx-ai/grok-4.3::xai/priority

Model specifications

Developer
x-ai
Modality
Language
Context
1,000,000 tokens
Maximum output
900,000 tokens
Weights
Not reported
Provider listed
Apr 30, 2026
First discovered
Oct 16, 2026

Exact identities

  • openrouterx-ai/grok-4.3
  • experientialgrok-4.3

Sources

Updated Oct 17, 2026

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