Xai
100.00%Context2M
Max output2M
p50 latency—
Throughput—
Input price$1.25
Output price$2.5
Zero retentionNo trainingCaching
Model directory
Baseer model profileLanguage model
spacexai/grok-4.20-reasoning-beta
Grok 4.20 Beta Reasoning
Grok 4.20 Beta is the newest flagship model from xAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering consistently precise and truthful responses.
Input / 1M tokens$1.25
Output / 1M tokens$2.5
Maximum context2M
Inference providers1
Price comparison
USD per one million tokens, using current provider data.
Provider uptime
Reported availability over the last 24 hours; not a contractual SLA.
Inference providers
Compare current pricing, performance, and privacy across every available provider.
| Provider | Maximum context | Max output | p50 latency | p50 throughput | 24h uptime | Input / 1M tokens | Output / 1M tokens | Privacy |
|---|---|---|---|---|---|---|---|---|
Xai | 2M | 2M | — | — | 100.000% | $1.25 | $2.5 |
What can this model do?
Available modalities and capabilities across inference providers.
TextImageFileAdvanced reasoningTool useVisionFile inputAutomatic cachingWeb searchTools
Technical profile
- Model type
- Language model
- Release date
- Mar 11, 2026
- Knowledge cutoff
- —
- Regions
- —
- API specifications
- V2, V3, V4
- Temperature control
- Supported
Model identifier
spacexai/grok-4.20-reasoning-betaModel profile updated: Sep 12, 2026, 1:46 PM
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