Context
1M
Max output
1M
Serving providers
1
Cheapest input
$1.25 /1M
On-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments (committed-use discounts, provisioned throughput, negotiated rates) can be materially lower.
Benchmarks
independent evaluations · source: Artificial AnalysisHeadline indices
Individual benchmarks · click a row for effort variants
| Benchmark | Best score | Effort | Cost / task | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| APEX Agents | 14% | default | — | |||||||||||||
| CritPt | 6% | default | — | |||||||||||||
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| GPQA Diamond | 88% | default | — | |||||||||||||
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| Humanity's Last Exam | 32% | default | — | |||||||||||||
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| IFBench | 83% | default | — | |||||||||||||
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| Long-Context Reasoning | 68% | default | — | |||||||||||||
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| MMMU-Pro | 73% | default | — | |||||||||||||
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| Omniscience | 12.9 | default | — | |||||||||||||
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| Omniscience Accuracy | 0.3 | default | — | |||||||||||||
| Omniscience Non Hallucination | 0.8 | default | — | |||||||||||||
| SciCodeArtificial Analysis did not report this score in its latest run on Oct 14, 2026 | 45% | — | — | |||||||||||||
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| TerminalBench Hard | 41% | default | — | |||||||||||||
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| τ²-bench | 96% | default | — | |||||||||||||
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Pricing by serving provider
standard tier · per 1M tokens · click a provider to expand| Serving provider | Input /1M | Output /1M | Endpoints | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| xAICheapest | $1.25 | $2.50 | 1 | |||||||||||||||||
Standardxai/grok-4.20-0309
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Price history
listed seller prices, input and output per 1M tokens Input Output
Cost calculator
estimate your monthly spend on this model$450
estimated / month
Model IDs
copy the exact identifier for your platformxai/grok-4.20-0309
Frequently asked questions
Grok 4 20 0309 pricing, context and availabilityHow much does Grok 4 20 0309 cost?
Grok 4 20 0309 costs $1.25 per 1M input tokens from xAI, and $2.50 per 1M output tokens from xAI.
What is the context window of Grok 4 20 0309?
Grok 4 20 0309 accepts up to 1M tokens of context and can return up to 1M output tokens.
What can Grok 4 20 0309 do?
Grok 4 20 0309 supports image input (vision), tool use, reasoning, prompt caching, structured output and web search.
Other xAI models
compare pricing across the xAI lineup Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026
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