Model Comparison
GPT-5 mini (high)
vs. Gemini 3 Flash Preview (Reasoning)
Comparing 2 AI models · 0 benchmarks · OpenAI, Google
Recommended Pick
GoGemini 3 Flash Preview (Reasoning)6 metric winsStrongest on: Value, Throughput, TTFT
Best Value
Gemini 3 Flash Preview (Reasoning)
100.0 value score
30.7 reasoning / $1.13/1M
Lowest Price
GPT-5 mini (high)
$0.25/1M input price
Best Reasoning
Gemini 3 Flash Preview (Reasoning)
30.7 reasoning score
Blends available reasoning benchmarks
Best for Coding
GPT-5 mini (high)
15.6 coding index
Differences That Matter
Best value
Gemini 3 Flash Preview (Reasoning) has the strongest quality-to-price mix at 100.0 out of 100 value points.
Price gap
GPT-5 mini (high) is 2.0x cheaper on input tokens than Gemini 3 Flash Preview (Reasoning).
Speed gap
Gemini 3 Flash Preview (Reasoning) generates about 2.0x as many tokens per second as GPT-5 mini (high).
Reasoning gap
Gemini 3 Flash Preview (Reasoning) leads GPT-5 mini (high) by 12.3 points on reasoning.
Top-pick rationale
Gemini 3 Flash Preview (Reasoning) wins 6 measurable categories, including Value, Throughput, TTFT, Latency.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
GPT-5 mini (high)
OpenAI
TTFT
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tok/s
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Tokens
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Cost
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Gemini 3 Flash Preview (Reasoning)
TTFT
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tok/s
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Tokens
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Which answer was more useful?
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OpenAI-compatible inference
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Full Comparison
| Metric | Op GPT-5 mini (high) | Top Pick Go Gemini 3 Flash Preview (Reasoning) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.25/1M | $0.50/1M |
| Output Cost | $2.00/1M | $3.00/1M |
| Blended (3:1) | $0.69/1M | $1.13/1M |
| Specifications | ||
| Organization | OpenAI | |
| Release Date | Aug 7, 2025 | Dec 17, 2025 |
| Performance & Speed | ||
| Throughput | 104.9 tok/s | 214.5 tok/s |
| TTFT | 75530ms | 5840ms |
| Latency | 75530ms | 5840ms |
| Composite Indices | ||
| Value Score | 98.1 | 100.0 |
| Reasoning Score | 18.4 | 30.7 |
| Intelligence | 18.4 | 30.7 |
| Coding | 15.6 | — |
Key Takeaways
GPT-5 mini (high) offers the best value at $0.25/1M,making it ideal for high-volume applications and cost-conscious projects.
Gemini 3 Flash Preview (Reasoning) has the strongest reasoning profile with a 30.7 reasoning score,combining the available reasoning-heavy benchmarks.
GPT-5 mini (high) reaches a 15.6 coding index,making it the top choice for software development and code generation tasks.
All models support context windows of ∞+ tokens,suitable for processing lengthy documents and maintaining extended conversations.
When to Choose Each Model
GPT-5 mini (high)
- Cost-sensitive applications
- High-volume processing
- Code generation
- Software development
Gemini 3 Flash Preview (Reasoning)
- Complex reasoning tasks
- Research & analysis
