xAI
Grok 4.20
xAI's Grok 4.20 API release is recorded on March 10, 2026; its system card was published April 7. Current documentation lists a 1M-token context window, text and image input, text output, function calling and structured outputs. The standard reasoning API and the separate multi-agent API are distinct endpoints; the latter can use 4 or 16 agents. Current-event retrieval requires enabled search tools.
1M tokens
Multimodal
Max
Superseded
- Provider
- xAI
- Context
- 1MCatalog · As of Sep 10, 2026Recent · 1d old
- yno subscription tier
- Max
- Released
- Mar 10, 2026
- Speed
- Medium
- Reasoning
- Expert
- Modality
- Multimodal
Benchmarks
Quality
- AA Intelligence Index
- GPQA Diamond
- 91.1%Artificial Analysis · Date unknownAge unknown
Speed and latency
- Output speed
API pricing
- API input cost
- API output cost
Benchmark variant: Grok 4.20 0309 v2 (Reasoning)
AA data retrieved Sep 11, 2026 · Artificial Analysis
Indexes use points; evaluations use accuracy percentages. API measurements do not measure yno application performance. Methodology
Capabilities
- Reasoning
- Vision
- Tool Use
- Structured Outputs
- Long Context
Use cases
- Tool-calling agents
- Text analysis
- Image understanding
- Structured data extraction
Strengths
- 1M context
- Text and image input
- Function calling
- Structured outputs
Best for
Applications using Grok 4.20 reasoning, image input and tool-calling capabilities
Use Grok 4.20 in yno.ai
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Related models
Frequently asked
- What is Grok 4.20?
- xAI's Grok 4.20 API release is recorded on March 10, 2026; its system card was published April 7. Current documentation lists a 1M-token context window, text and image input, text output, function calling and structured outputs. The standard reasoning API and the separate multi-agent API are distinct endpoints; the latter can use 4 or 16 agents. Current-event retrieval requires enabled search tools.
- How much does Grok 4.20 cost in yno.ai?
- Grok 4.20 is available on the Max tier of yno.ai.
- What can Grok 4.20 do?
- Grok 4.20 is best for Applications using Grok 4.20 reasoning, image input and tool-calling capabilities. Its main capabilities include Reasoning, Vision, Tool Use, Structured Outputs, Long Context.
- How does Grok 4.20 compare to other models?
- Grok 4.20 excels at 1M context and is recommended for Tool-calling agents, Text analysis, Image understanding, Structured data extraction. See related models below.
- How do I use Grok 4.20 in yno.ai?
- Sign up for yno.ai, select Grok 4.20 from the model picker, and start chatting.