Model Details
Owner
xAI
Released
Mar 2026
Status
Active
Context Length
1,000,000
Max Output
NA
Provider
Perplexity
Where is grok-4.20-reasoning a perfect fit?
Grok 4.20 Reasoning is xAI's high-performance reasoning model designed for complex problem solving, low hallucination rates, and strong agentic tool calling. It combines extended reasoning with strict prompt adherence for professional and enterprise applications.
- Complex mathematical, scientific, and engineering reasoning
- Advanced coding, debugging, and software architecture tasks
- Multi-step autonomous agents using external tools
- Long-context document and codebase analysis
- Enterprise knowledge assistants requiring high factual accuracy
- Structured data extraction and JSON generation
- Research, planning, and technical writing
- Applications prioritizing reasoning quality over minimum latency
- Complex mathematical, scientific, and engineering reasoning
- Advanced coding, debugging, and software architecture tasks
- Multi-step autonomous agents using external tools
- Long-context document and codebase analysis
- Enterprise knowledge assistants requiring high factual accuracy
- Structured data extraction and JSON generation
- Research, planning, and technical writing
- Applications prioritizing reasoning quality over minimum latency
Quick Model Estimate
Your GPT-5 Cost Estimate
💰 Total Cost
USD 3.00
for 1000 input + 1000 output tokens
📥 Input (1000 × $1.250000)
USD 1.5000
📤 Output (1000 × $2.500000)
USD 1.5000
Cost Breakdown
📥 Input 50%
📤 Output 50%
Prices updated daily from official provider data.
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 Perplexity
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Text | Standard | $1.2500 | $2.5000 | 0 – 200,000 tokens | → |
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Perplexity
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Text | Standard | $2.5000 | $5.0000 | 200,000+ tokens | → |