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GPT-4o mini vs Grok 4 1 Fast Non Reasoning

Pricing is only the shared seller matrix below. Best rates and catalog map are separate sections, so no chart is embedded in pricing. Open the calculator for the same workload on each side.

OpenAI

Model

GPT-4o mini

Image inputTool calling

Best $0.150 in · $0.600 out

Context window 128K

Pricing
Xai

Model

Grok 4 1 Fast Non Reasoning

Tool calling

Best $0.200 in · $0.500 out

Context window 131K

Pricing

GPT-4o mini is 25% cheaper on input. Grok 4 1 Fast Non Reasoning is 16% cheaper on output. The best choice depends on your input/output ratio.

Pricing matrix

Shared sellers only. Each row is a host that lists both models. Dollar amounts are per 1M tokens. Lowest in each pair of columns is emphasized.

ProviderGPT-4o mini inGPT-4o mini outGrok 4 1 Fast Non Reasoning inGrok 4 1 Fast Non Reasoning out
Azure$0.150$0.600$0.200$0.500
Github CopilotN/AN/AN/AN/A
Gmi$0.150$0.600N/AN/A
OpenAI$0.150$0.600N/AN/A
Openrouter$0.150$0.600N/AN/A
Replicate$0.150$0.600N/AN/A
Vercel Ai Gateway$0.150$0.600N/AN/A
XaiN/AN/A$0.200$0.500

Best listed rates (this pair)

Same "best row in current pricing" logic as model pages: a compact view of the lowest input and output we show for each side. This is not the seller matrix.

Catalog map · OpenAI · Xai

Each chart uses real catalog rows that include both list input and list output ($/1M). Larger green dots are the models on this comparison page; accent dots are other active models from that provider.

OpenAI · input vs output

Scatter chart: X = input $/M, Y = output $/M. This page's models are labeled on the green dots; hover others for detail.

ListedoutputUSD/1M

One dot per catalog row that has both list prices. Green dots are labeled with the models on this page; hover any dot for name and prices. Upper-right means higher cost on both axes ($/1M).

Xai · input vs output

ListedoutputUSD/1M

One dot per catalog row that has both list prices. Green dots are labeled with the models on this page; hover any dot for name and prices. Upper-right means higher cost on both axes ($/1M).

Specifications

Each column header is the full model name. Tint marks the favorable value where we compute a winner.

Spec
GPT-4o mini
Grok 4 1 Fast Non Reasoning
Context window
128,000 tokens
131,072 tokens
Max output tokens
16,384 tokens
131,072 tokens
Vision
Yes
No
Function calling
Yes
Yes
Streaming
Yes
No
Release date
Jul 2024
N/A

Cost calculator

Same requests, input tokens, and output tokens for both columns. Pick the provider row that matches how you buy.

GPT-4o mini
Monthly
$0.0000
Annual
$0.0000
Grok 4 1 Fast Non Reasoning
Monthly
$135
Annual
$1.6K
Save $135/month with GPT-4o mini

When to pick which

Short takeaways: no cards, just the points. Validate with your own workloads.

  • Long-context tasks

    Use Grok 4 1 Fast Non Reasoning. Its 131K context window handles large codebases and documents better than 128K.

  • High-volume text generation

    Use Grok 4 1 Fast Non Reasoning. Output tokens are 16% cheaper, which compounds significantly at scale.

  • Long output (reports, code files)

    Use Grok 4 1 Fast Non Reasoning. Its 131K max output limit reduces the need to split requests.

Frequently asked questions

GPT-4o mini is cheaper on input tokens, while Grok 4 1 Fast Non Reasoning is cheaper on output. The best choice depends on your input/output ratio.

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