Capabilities
7-day heat trend
−24.4%Pricing breakdown
Typical 3:1 output-to-input mix, per 1M tokens
Estimated monthly cost by workload
Market position
- Cheaper than 9% of tracked models
- Faster than 97% of tracked models
- Efficiency rank: #65 of 1105
Best suited for
Complex reasoning, analysis, planning and multi-step problem solving where answer quality matters more than raw cost.
About grok-4.20-0309-reasoning
Grok 4.20 Reasoning is an xAI high-context model for precise reasoning and agentic tool workflows.
grok-4.20-0309-reasoning is a Reasoning model from xAI (US). HotON.ai tracks it at $1.25 per 1M input tokens and $2.50 per 1M output tokens, with a 2000K-token context window, ~172 tokens/sec throughput and 97.4% availability. Its composite efficiency score is 95/100 at an estimated $0.004 per successful task.
Compare grok-4.20-0309-reasoning
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Frequently asked questions
How much does grok-4.20-0309-reasoning cost per 1M tokens?+
grok-4.20-0309-reasoning is tracked at $1.25 per 1M input tokens and $2.50 per 1M output tokens. A typical 3:1 output-to-input workload blends to roughly $2.19 per 1M tokens. Figures are illustrative demo data.
What is grok-4.20-0309-reasoning best for?+
Complex reasoning, analysis, planning and multi-step problem solving where answer quality matters more than raw cost.
How fast is grok-4.20-0309-reasoning?+
grok-4.20-0309-reasoning delivers about 172 tokens/sec with 97.4% tracked availability, suitable for latency-sensitive, real-time applications.
Is grok-4.20-0309-reasoning cheaper than other AI models?+
Within the HotON.ai tracked set, grok-4.20-0309-reasoning is cheaper than 9% of models on input price and ranks #65 of 1105 by overall efficiency.
Related models
Pricing is real (via the TestKey catalog, updated daily). Quality (Arena Elo) is real where the model is ranked on LMArena. Speed, availability and efficiency are modeled estimates.