Grok 4.1 Fast

Grok / X.AI • API Price Comparison

📏 Context: 2,000,000 tokensAdded Mar 3, 2026

Grok 4.1 Fast is a large language model by Grok / X.AI with a 2M-token context window. Prices are collected daily from official provider pages and every tracked channel, then cross-checked by a data-accuracy audit.

Model performance benchmarks

Scores retain their original benchmark, version and metric. We do not combine them into a site-wide score; results from different versions are not directly comparable.

GPQA Diamond

63.7%

DiamondArtificial Analysis current suite · ACCURACYAs of 2026-09-20

Humanity's Last Exam

5.1%

Text onlyArtificial Analysis current suite · ACCURACYAs of 2026-09-20

SciCode

29.6%

MainArtificial Analysis current suite · PASS_RATEAs of 2026-09-04

Terminal-Bench Hard

14.4%

HardArtificial Analysis current suite · SUCCESS_RATEAs of 2026-09-20

IFBench

36.5%

MainArtificial Analysis current suite · ACCURACYAs of 2026-09-20

MMMU-Pro

48.4%

MainArtificial Analysis current suite · ACCURACYAs of 2026-09-20

💰 Cheapest Option

N/A

-/1M input

-/1M output

🏢 Official Price

N/A

No official channel available

🇨🇳 Best in China

No China-friendly options

📊 Channel Price Comparison

Compare grok-4.1-fast API prices across all available channels • 0 channels available

Channel	Type	Input / 1M	Output / 1M	Rate Limit	China	vs Official

📈 Price History

Every scraper-detected price change is recorded. Same-day multiple changes take the last value; unchanged channels carry the last observed price forward.

No price history yet. New price changes will appear after the next scraper run.

💵 Estimated Monthly Costs

Based on typical usage patterns (input:output = 2:1 ratio); all channels converted to USD for comparison

Usage Level	Tokens/Month
🐣 Light	0.1M in + 0.1M out
📊 Medium	1.0M in + 0.5M out
🚀 Heavy	10.0M in + 5.0M out
🏢 Enterprise	100.0M in + 50.0M out

Frequently asked questions about grok-4.1-fast

What is the context window of Grok 4.1 Fast?

Grok 4.1 Fast offers a 2,000,000-token context window.

How often are Grok 4.1 Fast prices updated, and how reliable is the data?

Prices are scraped daily from official pricing pages and every tracked channel, with every significant change recorded in a price-history log. A daily read-only data audit cross-checks each channel against the model producer's published price and flags stale or inconsistent rows for correction.

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