Grok 4.3on Krater.ai
xAI's Grok 4.3 is the latest flagship in the Grok family, with a 1M-token context window, improved reasoning, and real-time knowledge access. Built for truth-seeking conversation and complex problem solving.
Released April 30, 2026
Specifications
Grok 4.3 at a glance
Context
1M tokens
Input
Text, Image, File
Output
Text
Input price
$1.25 / 1M
Output price
$2.50 / 1M
Krater rank
#13
Capabilities
What it is good at
Catalog capabilities
- Accepts image input
- Generates text responses
- Supports tool calling
- Supports structured outputs
- 1M-token context for huge documents
- Real-time knowledge access
Good for
Benchmarks
Catalog data, not Krater benchmarks.
Coding index score
42.2
Agentic index score
24.2
Intelligence index score
37.9
Design Arena pptxslides rank
#9
Design Arena agentichtmlslides rank
#10
Compare
Compare Grok 4.3
Grok 4.3 vs SpaceXAI: Grok 4.5
Grok 4.5 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM.
Open comparisonGrok 4.3 vs SpaceXAI: Grok 4.6
Grok 4.6 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.
Open comparisonGrok 4.3 vs SpaceXAI: Grok 4.20 Multi-Agent
Grok 4.20 Multi-Agent is a variant of SpaceXAI’s Grok 4.20 designed for collaborative, agent-based workflows.
Open comparisonFAQ
Questions about Grok 4.3
Clear answers based on the model catalog and Krater access.
Use Grok 4.3 in your API
Connect with Krater's unified API.