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Grok 4 Heavypreview
Heavy-compute Grok variant aimed at extreme reasoning tasks.
Intelligence
54.5 #347
Top 47% tier
Output Speed
50 t/s
ITL 20.0 ms/tok
Blended price (3:1)
$6 /1M
In $3/M · Out $15/M
Context
256k
≈ 640 A4 pages · max out 8,192
Quality Domain Radar
6-Axis Frontier Evaluation vs Category Average & Flagship
Grok 4 Heavy
Claude Mythos Preview (#1)
Average (68)
Radar axes are approximated from category scores where direct benchmark measurements are missing — see Methodology.
API deployment
Compare hosts & latency
Throughput, TTFT and cache pricing across Groq, Cerebras, Together, DeepInfra, Fireworks, Bedrock and Azure.
GroqCerebrasTogether AIDeepInfraFireworks AIAWS BedrockAzure AI
Groq
Cerebras
Together AI
DeepInfra
Fireworks AI
AWS Bedrock
Azure AIScores by Source
Category Scores
Benchmark Results
Model Details
Release date
Nov 30, 2024
Parameters
Not disclosed
License
Proprietary
Context Window
256,000 tokens
Input Price
$3/M
Output Price
$15/M
Output Speed
50 t/s
Time to First Token
—
Estimated monthly bill
Estimated monthly spend
$0.00
Calculating savings vs GPT-4o...
Cite & embed
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@misc{llmpodium2026grok4heavy,
title = {Benchmark Analysis and Intelligence Evaluation of Grok 4 Heavy},
author = {LLMPodium Research},
year = {2026},
url = {https://llmpodium.com/models/grok-4-heavy}
}Embed Score Badge
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