Deprecated on May 15, 2026. 2 providers still list it at the prices below.
Context
131K
Max output
131K
Serving providers
2
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 | |
|---|---|---|---|---|
| CritPt | 0% | default | — | |
| GPQA Diamond | 64% | default | — | |
| Humanity's Last Exam | 5% | default | — | |
| IFBench | 36% | default | — | |
| IT-Bench SRE | 18% | default | — | |
| LiveCodeBenchArtificial Analysis did not report this score in its latest run on Oct 14, 2026 | 40% | — | — | |
| Long-Context Reasoning | 31% | default | — | |
| MMLU-ProFrozen Aug 18, 2026 | 74% | default | — | |
| MMMU-Pro | 48% | default | — | |
| Omniscience | -50.9 | default | — | |
| Omniscience Accuracy | 0.2 | default | — | |
| Omniscience Non Hallucination | 0.2 | default | — | |
| SciCodeArtificial Analysis did not report this score in its latest run on Oct 14, 2026 | 30% | — | — | |
| TerminalBench Hard | 14% | default | — | |
| τ²-bench | 64% | default | — |
Artificial Analysis last published scores for this benchmark on Aug 18, 2026. Scores here are frozen at that date, and models released since are not on it.
Pricing by serving provider
standard tier · per 1M tokens · click a provider to expandInput pricing runs from $1.25 to $5.00 per 1M tokens across 2 providers, so the dearest route costs 300% more than the cheapest for the same model.
| Serving provider | Input /1M | Output /1M | Endpoints | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| xAICheapest | $1.25 | $2.50 | 1 | |||||||||||||
Standardxai/grok-4-1-fast
| ||||||||||||||||
| OCI | $5.00 | $25.00 | 1 | |||||||||||||
Standardoci/xai.grok-4.1-fast
| ||||||||||||||||
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-4-1-fastoci/xai.grok-4.1-fast
Frequently asked questions
Grok 4.1 Fast pricing, context and availabilityIs Grok 4.1 Fast still available?
Grok 4.1 Fast was deprecated on 2026-05-15, but 2 serving providers still list it.
How much does Grok 4.1 Fast cost?
Grok 4.1 Fast costs $1.25 per 1M input tokens from xAI, and $2.50 per 1M output tokens from xAI. Across 2 serving providers, input prices range from $1.25 to $5.00 per 1M tokens.
What is the context window of Grok 4.1 Fast?
Grok 4.1 Fast accepts up to 131K tokens of context and can return up to 131K output tokens.
Which providers serve Grok 4.1 Fast?
Grok 4.1 Fast is available from 2 serving providers, each with its own pricing and model ID. xAI is currently the cheapest.
What can Grok 4.1 Fast do?
Grok 4.1 Fast supports tool use.
Other xAI models
compare pricing across the xAI lineup Listed prices from LiteLLM, OpenRouter and Vercel · last checked Sep 22, 2026
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