Grok 4.20 (Reasoning)
xai/grok-4.20-0309-reasoningReasoning Grok for document-heavy analysis and long-horizon tool use
Context
1M
1,000,000 tokens
Max output
30K
30,000 tokens
Input
$1.25
per 1M tokens
Output
$2.50
per 1M tokens
Providers
20
22 listings
Intelligence
—
Not yet scored
Pricing
USD per 1M tokens · listed by xAI
| Token type | Standard | Over 200K context |
|---|---|---|
| Input | $1.25 | $2.50 |
| Output | $2.50 | $5.00 |
| Cache read | $0.20 | $0.40 |
Above 200K context: $2.50 in, $5.00 out. Lowest input price across providers: $1.25.
Capabilities
ReasoningYes
Effort: low, medium, high
Tool callYes
Structured outputYes
TemperatureYes
AttachmentsYes
Interleaved reasoningNo
Open weightsNo
ModeratedUnknown
Input
TextImagePDF
Output
Text
Benchmarks
Published scores and Design Arena Elo
No published benchmark scores for this model yet.
Rankings
Position on each OneAtlas leaderboard
Providers · 20
22 listings
xAI
NanoGPT
LLM Gateway
Vercel AI Gateway
Kilo Gateway
Eden AI
DevPass (LLM Gateway)
Merge GatewayRequesty
Ofox
302.AI
Venice AI
ZenMux
Azure
Azure Cognitive Services
Tempr Gateway
Impossibl
Cloudflare AI Gateway
Vertex
OCI Generative AI| Provider | Model ID | Context | Input limit | Output | Input $ | Output $ | Reasoning $ | Cache read | Cache write | Audio in | Audio out | Reasoning | Tools | Structured | Temp. | Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 302.AI | grok-4.20-beta-0309-reasoning | 2M | — | 30K | $2.00 | $6.00 | — | — | — | — | — | Yes | Yes | Unknown | Yes | Mar 9, 2026 |
| Azure | grok-4-20-reasoning | 262K | — | 8K | $2.00 | $6.00 | — | — | — | — | — | Yes | Yes | Unknown | Yes | Apr 8, 2026 |
| Azure Cognitive Services | grok-4-20-reasoning | 262K | — | 8K | $2.00 | $6.00 | — | — | — | — | — | Yes | Yes | Unknown | Yes | Apr 8, 2026 |
| Cloudflare AI Gateway | xai/grok-4.20-0309-reasoning | 2M | — | 30K | $2.00 | $6.00 | — | $0.20 | — | — | — | Yes | Yes | Yes | Yes | Mar 9, 2026 |
| DevPass (LLM Gateway) | grok-4-20-reasoning | 2M | — | 30K | $1.25 | $2.50 | — | $0.20 | — | — | — | Yes | Yes | Yes | Yes | Mar 9, 2026 |
| DevPass (LLM Gateway) | grok-4-20-beta-0309-reasoning | 2M | — | 30K | $2.00 | $6.00 | — | $0.20 | — | — | — | Yes | Yes | Yes | Yes | Mar 9, 2026 |
| Eden AI | xai/grok-4.20-0309-reasoning | 1M | — | 30K | $1.25 | $2.50 | — | $0.20 | — | — | — | Yes | Yes | Yes | Yes | Mar 9, 2026 |
| Impossibl | xai/grok-4.20-0309-reasoning | 1M | — | 30K | $1.25 | $2.50 | — | $0.20 | — | — | — | Yes | Yes | Yes | Yes | Mar 9, 2026 |
| Kilo Gateway | x-ai/grok-4.20 | 2M | — | 1.8M | $1.25 | $2.50 | — | $0.20 | — | — | — | Yes | Yes | Yes | Yes | Mar 31, 2026 |
| LLM Gateway | xai/grok-4-20-beta-0309-reasoning | 2M | — | 30K | $2.00 | $6.00 | — | $0.20 | — | — | — | Yes | Yes | No | Yes | Mar 9, 2026 |
| LLM Gateway | vertex-openai/grok-4-20-reasoning | 2M | — | 30K | $1.25 | $2.50 | — | $0.20 | — | — | — | Yes | Yes | No | Yes | Mar 9, 2026 |
| Merge Gateway | xai/grok-4.20-0309-reasoning | 1M | — | 1M | $1.25 | $2.50 | — | $0.20 | — | — | — | Yes | Yes | Yes | Yes | Mar 9, 2026 |
| NanoGPT | x-ai/grok-4.20 | 2M | 2M | 131K | $1.25 | $2.50 | — | $0.20 | — | — | — | Yes | Yes | Yes | Unknown | Mar 31, 2026 |
| OCI Generative AI | xai.grok-4.20-reasoning | 1M | — | 30K | $1.25 | $2.50 | — | $0.20 | — | — | — | Yes | Yes | Yes | Yes | Mar 9, 2026 |
| Ofox | x-ai/grok-4.20 | 2M | — | 128K | $4.00 | $12.00 | — | $0.40 | — | — | — | Yes | Yes | Yes | Yes | Mar 9, 2026 |
| Requesty | grok-4.2-beta | 2M | — | 30K | $2.00 | $6.00 | — | $0.20 | $2.00 | — | — | No | Yes | Yes | Yes | Mar 9, 2026 |
| Tempr Gateway | xai/grok-4.20-0309-reasoning | 1M | — | 30K | $1.25 | $2.50 | — | $0.20 | — | — | — | Yes | Yes | Yes | Yes | Mar 9, 2026 |
| Venice AI | grok-4-20 | 2M | — | 128K | $1.42 | $2.83 | — | $0.23 | — | — | — | Yes | Yes | Yes | Unknown | Jun 11, 2026 |
| Vercel AI Gateway | spacexai/grok-4.20-reasoning | 2M | — | 2M | $1.25 | $2.50 | — | $0.20 | — | — | — | Yes | Yes | Unknown | Yes | Mar 9, 2026 |
| Vertex | xai/grok-4.20-reasoning | 2M | — | 30K | $1.25 | $2.50 | — | $0.20 | — | — | — | Yes | Yes | Yes | Yes | Mar 9, 2026 |
| xAI | grok-4.20-0309-reasoning | 1M | — | 30K | $1.25 | $2.50 | — | $0.20 | — | — | — | Yes | Yes | Yes | Yes | Mar 9, 2026 |
| ZenMux | x-ai/grok-4.2-fast | 2M | — | 30K | $2.00 | $6.00 | — | $0.20 | — | — | — | No | Yes | Yes | Yes | Mar 9, 2026 |