Model Comparison

GPT-5.4 vs Grok-3 MiniWhich is better in 2026?

GPT-5.4 significantly outperforms across most benchmarks. Grok-3 Mini is 16.1x cheaper per token.

Verdict: GPT-5.4 vs Grok-3 Mini — which is better?

GPT-5.4 (by OpenAI) and Grok-3 Mini (by xAI) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

GPT-5.4 outperforms in 1 benchmarks (GPQA), while Grok-3 Mini is better at 0 benchmarks. GPT-5.4 significantly outperforms across most benchmarks.

On price, Grok-3 Mini is roughly 16.1x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

GPT-5.4 also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose GPT-5.4 if…

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
  • you process long inputs — it offers a 1,000,000 token context window
  • you want the most recent training data — it shipped Mar 2026

Choose Grok-3 Mini if…

  • cost matters — it's about 16.1x cheaper per token
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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

GPT-5.4 outperforms in 1 benchmarks (GPQA), while Grok-3 Mini is better at 0 benchmarks.

GPT-5.4 significantly outperforms across most benchmarks.

Sun Jun 07 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Grok-3 Mini costs less

For input processing, GPT-5.4 ($2.50/1M tokens) is 8.3x more expensive than Grok-3 Mini ($0.30/1M tokens).

For output processing, GPT-5.4 ($15.00/1M tokens) is 30.0x more expensive than Grok-3 Mini ($0.50/1M tokens).

In conclusion, GPT-5.4 is more expensive than Grok-3 Mini.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Sun Jun 07 2026 • llm-stats.com
OpenAI
GPT-5.4
Input tokens$2.50
Output tokens$15.00
Best providerOpenAI
xAI
Grok-3 Mini
Input tokens$0.30
Output tokens$0.50
Best providerxAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

GPT-5.4 accepts 1,000,000 input tokens compared to Grok-3 Mini's 128,000 tokens. GPT-5.4 can generate longer responses up to 128,000 tokens, while Grok-3 Mini is limited to 8,000 tokens.

OpenAI
GPT-5.4
Input1,000,000 tokens
Output128,000 tokens
xAI
Grok-3 Mini
Input128,000 tokens
Output8,000 tokens
Sun Jun 07 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both GPT-5.4 and Grok-3 Mini support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

GPT-5.4

Text
Images
Audio
Video

Grok-3 Mini

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

GPT-5.4

Proprietary

Closed source

Grok-3 Mini

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-5.4 was released on 2026-03-05, while Grok-3 Mini was released on 2025-02-17.

GPT-5.4 is 13 months newer than Grok-3 Mini.

GPT-5.4

Mar 5, 2026

3 months ago

1.0yr newer
Grok-3 Mini

Feb 17, 2025

1.3 years ago

Knowledge Cutoff

When training data ends

Grok-3 Mini has a documented knowledge cutoff of 2024-11-17, while GPT-5.4's cutoff date is not specified.

We can confirm Grok-3 Mini's training data extends to 2024-11-17, but cannot make a direct comparison without GPT-5.4's cutoff date.

GPT-5.4

—

Grok-3 Mini

Nov 2024

Provider Availability

GPT-5.4 is available from OpenAI. Grok-3 Mini is available from xAI.

GPT-5.4

openai logo
OpenAI
Input Price:Input: $2.50/1MOutput Price:Output: $15.00/1M

Grok-3 Mini

xai logo
xAI
Input Price:Input: $0.30/1MOutput Price:Output: $0.50/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

OpenAI
Larger context window (1,000,000 tokens)
Higher GPQA score (92.8% vs 84.0%)
xAI
Less expensive input tokens
Less expensive output tokens
OpenAIGPT-5.4
xAIGrok-3 Mini
Compare in Playground

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
GPT-5.4
xAI
Grok-3 Mini

FAQ

Common questions about GPT-5.4 vs Grok-3 Mini.

Which is better, GPT-5.4 or Grok-3 Mini?

GPT-5.4 significantly outperforms across most benchmarks. GPT-5.4 is made by OpenAI and Grok-3 Mini is made by xAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does GPT-5.4 compare to Grok-3 Mini in benchmarks?

GPT-5.4 scores Tau2 Telecom: 98.9%, ARC-AGI: 93.7%, Graphwalks BFS <128k: 93.0%, GPQA: 92.8%, Graphwalks parents <128k: 89.8%. Grok-3 Mini scores AIME 2024: 95.8%, AIME 2025: 90.8%, GPQA: 84.0%, LiveCodeBench: 80.4%.

Is GPT-5.4 cheaper than Grok-3 Mini?

Grok-3 Mini is 8.3x cheaper for input tokens. GPT-5.4 costs $2.50/M input and $15.00/M output via openai. Grok-3 Mini costs $0.30/M input and $0.50/M output via xai.

What are the context window sizes for GPT-5.4 and Grok-3 Mini?

GPT-5.4 supports 1.0M tokens and Grok-3 Mini supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between GPT-5.4 and Grok-3 Mini?

Key differences include context window (1.0M vs 128K), input pricing ($2.50 vs $0.30/M). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-5.4 and Grok-3 Mini?

GPT-5.4 is developed by OpenAI and Grok-3 Mini is developed by xAI.

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