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
#9
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 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 comparisonGrok 4.3 vs SpaceXAI: Grok 4.20
Grok 4.20 is a reasoning model from SpaceXAI with industry-leading speed and agentic tool calling capabilities.
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.