GPT-5.4 mini vs Gemini 2.5 Flash
Which model is better? Compare pricing, capabilities, and performance.
Quick Verdict
GPT-5.4 mini wins on coding and reasoning; Gemini 2.5 Flash wins on speed, pricing, and context window.
| Category | GPT-5.4 mini | Gemini 2.5 Flash |
|---|---|---|
| Provider | Openai | |
| Input Price | $0.75/M | $0.30/M★ |
| Output Price | $4.50/M | $2.50/M★ |
| Context Window | 262,144 | 1,048,576★ |
| Max Output | 16,384★ | 8,192 |
| Coding Score | 76 | 76 |
| Reasoning Score | 72 | 74★ |
| Speed Score | 94 | 96★ |
| Modalities | text, image | text, image, audio |
| Latency | very fast | very fast |
| Rate Limit | 30,000 RPM | 30,000 RPM |
Detailed Analysis
GPT-5.4 mini and Gemini 2.5 Flash represent the best budget-friendly options from OpenAI and Google. Both are designed for high-volume, low-latency applications, but they excel in different areas.
GPT-5.4 mini offers stronger cognitive performance with coding at 76 vs 76 (tied), reasoning at 72 vs 74, and math at 74 vs 75. The models are closely matched on raw intelligence, with Gemini having a slight edge in reasoning and math.
Gemini 2.5 Flash dominates on speed with a score of 96 vs GPT-5.4 mini's 94, making it one of the fastest models available. Its 1 million token context window is 4x larger than GPT-5.4 mini's 256K, and its pricing at $0.15/$0.60 is significantly cheaper than GPT-5.4 mini's $0.75/$4.50 — a 5x difference on input and 7.5x on output.
However, GPT-5.4 mini benefits from OpenAI's extensive ecosystem, broader developer tooling, and seamless integration with existing OpenAI workflows. For teams already using OpenAI, the familiarity and compatibility may outweigh Gemini's advantages.
Choose Gemini 2.5 Flash if speed, context, and cost are your primary concerns. Choose GPT-5.4 mini if ecosystem compatibility and balanced performance matter more.
GPT-5.4 mini Pros
- +Stronger developer ecosystem and tooling
- +Higher max output (16K tokens)
- +Balanced performance across categories
GPT-5.4 mini Cons
- −Higher pricing — 5x more expensive on input
- −Smaller 256K context window
- −Slightly slower than Gemini
Gemini 2.5 Flash Pros
- +Ultra-low pricing at $0.15/$0.60 per million tokens
- +Massive 1M token context window
- +Fastest inference among budget models
Gemini 2.5 Flash Cons
- −Smaller developer ecosystem
- −Lower max output (8K tokens)
- −Weaker integration with third-party tools
Frequently Asked Questions
Summary
When choosing between GPT-5.4 mini and Gemini 2.5 Flash, consider your specific needs. GPT-5.4 mini wins on coding and reasoning; Gemini 2.5 Flash wins on speed, pricing, and context window.We recommend reviewing the full comparison table above and considering your budget, required context window, and primary use case before making a decision.