Shared benchmark wins
GPT-5 mini
3 wins4 exact shared benchmarks compared
AI Orbit comparison
GPT-5 mini vs Gemini 2.5 Flash
Compare Gemini 2.5 Flash vs GPT-5 mini pricing, benchmarks, context and capabilities side by side.
Gemini 2.5 Flash
Gemini 2.5 Flash is a model from Google DeepMind, released on April 17, 2025. Its verified profile includes Text Generation, Reasoning, Image Understanding, Video Underst...
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GPT-5 mini
GPT-5 mini is a model from OpenAI, released on August 7, 2025. Its verified profile includes Text Generation, Reasoning, Image Understanding, Code Generation, Structured...
View profileComparison evidence snapshot
Factual coverage of this comparison. AI Orbit does not declare a universal winner because the better choice depends on workload and evidence.
Items compared2
Public AI model profiles
Shared benchmarks4
Exact verified benchmark overlap
Pricing coverage2 / 2
Profiles with structured API pricing
Evidence freshnessSep 2026
Latest verified pricing or benchmark evidence
At-a-glance signals
Category-level facts from verified pricing, shared benchmarks and structured product data. These signals are not an overall ranking.
Lower input price
GPT-5 mini
$0.25 / 1MLowest verified input-token price
Lower output price
GPT-5 mini
$2.00 / 1MLowest verified output-token price
Larger context
Gemini 2.5 Flash
1,048,576Largest comparable context window
Newer release
GPT-5 mini
Aug 2025Most recent listed release date
Comparison view
Hide rows where every selected item has the same displayed value.
Side-by-side comparison
Only useful comparison fields are shown. Missing data is never guessed or treated as zero.
| Metric | Gemini 2.5 Flash | GPT-5 mini |
|---|---|---|
| Provider | Google DeepMind | OpenAI |
| Context window | 1,048,576 | 400,000 |
| Input / 1M tokens | $0.30 | $0.25 |
| Output / 1M tokens | $2.50 | $2.00 |
| Status | Active | Active |
| Release date | Apr 2025 | Aug 2025 |
Data coverage: 6 comparison fields shown.
2 fields hidden because none of the selected items currently has reliable data.
If only one side is missing, it is labeled “No verified data yet”.
No differing rows are visible in this section.
API cost calculator
Estimate monthly token cost from the verified per-million prices stored on each model profile.
Estimate excludes discounts, caching, batch pricing, regional pricing and provider-specific fees unless already reflected in the stored rate.
Gemini 2.5 Flash—
Pricing verification pending
GPT-5 mini—
Pricing verification pending
Shared benchmark head-to-head
Only exact benchmarks with verified results for at least two selected items count toward win totals.
Multimodal1 shared benchmark
| Benchmark | Gemini 2.5 Flash | GPT-5 mini |
|---|---|---|
| MMMU Methodology | 79.70% Verified Source | 81.60% Lead Verified · Aug 2025 Source |
No differing benchmark rows are visible.
Math1 shared benchmark
| Benchmark | Gemini 2.5 Flash | GPT-5 mini |
|---|---|---|
| AIME 2025 Methodology | 72.00% Verified Source | 91.10% Lead Verified Source |
No differing benchmark rows are visible.
Reasoning2 shared benchmarks
| Benchmark | Gemini 2.5 Flash | GPT-5 mini |
|---|---|---|
| Humanity's Last Exam (No Tools) Methodology | 11.00% Verified Source | 16.70% Lead Verified Source |
| GPQA Diamond Methodology | 82.80% Lead Verified Source | 82.30% Verified · Aug 2025 Source |
No differing benchmark rows are visible.
Additional one-sided benchmark evidence 25
These verified results provide context but do not count as head-to-head wins because the other selected items do not have the same benchmark result.
Gemini 2.5 FlashVideoMMMU79.20%
Gemini 2.5 FlashQVHighlights52.40%
Gemini 2.5 FlashPerception Test75.10%
Gemini 2.5 FlashEgoTempo36.70%
Gemini 2.5 FlashActivityNet-QA65.10%
Gemini 2.5 FlashMRCR v2 8-Needle 1M21.00%
Gemini 2.5 FlashMRCR v2 8-Needle <=128K54.30%
Gemini 2.5 FlashLOFT Hard 1M58.90%
Gemini 2.5 FlashLOFT Hard <=128K82.10%
Gemini 2.5 FlashGlobal MMLU Lite88.40%
Gemini 2.5 FlashFACTS Grounding85.30%
Gemini 2.5 FlashSimpleQA26.90%
Gemini 2.5 FlashSWE-bench Verified (Google Multiple Attempts)60.30%
Gemini 2.5 FlashSWE-bench Verified (Google Single Attempt)48.90%
Gemini 2.5 FlashAider Polyglot56.70%
Gemini 2.5 FlashLiveCodeBench59.30%
GPT-5 miniSWE-bench Verified71.00%
GPT-5 miniAider Polyglot (Diff)71.60%
GPT-5 miniSWE-bench Verified (OpenAI 477 Tasks)71.00%
GPT-5 miniERQA62.90%
GPT-5 miniVideoMMMU (Max 256 Frames)82.50%
GPT-5 miniCharXiv Reasoning (Python Enabled)75.50%
GPT-5 miniMMMU-Pro (Average Standard + Vision)74.10%
GPT-5 miniHMMT 202587.80%
GPT-5 miniFrontierMath (Python tool only)22.10%
Capability differences
Shared capabilities are separated from capabilities currently cataloged on only one selected item.
Audio UnderstandingMultimodalVideo Understanding
No unique capability difference verified.
Use-case coverage
Structured use-case relationships only. Missing relationships are not interpreted as lack of capability.
GEMINI 2.5 FLASH
Distinct use-case matches
No unique structured use-case match is verified for this comparison yet.
GPT-5 MINI
Distinct use-case matches
No unique structured use-case match is verified for this comparison yet.
Evidence & freshness
See how much verified benchmark/pricing evidence supports each profile and when it was last refreshed.
Gemini 2.5 FlashReview soon
- Verified benchmark results
- 20
- Benchmark evidence
- Sep 3, 2026
- Pricing evidence
- Not dated
- Profile review
- Not dated
GPT-5 miniReview soon
- Verified benchmark results
- 13
- Benchmark evidence
- Sep 3, 2026
- Pricing evidence
- Not dated
- Profile review
- Not dated
Evidence dates show the latest dated record available to AI Orbit; they do not imply that every field was re-verified on that date.
Comparison FAQ
Quick answers about this comparison.
How do Gemini 2.5 Flash and GPT-5 mini compare?
Compare the side-by-side pricing, benchmark, capability and product data on this page. The better fit depends on your use case and the verified evidence available for each product.
How is this comparison kept current?
Dynamic benchmark and pricing sections use the latest verified data stored in AI Orbit.
Which is cheaper for API use: Gemini 2.5 Flash or GPT-5 mini?
GPT-5 mini has the lower listed per-million-token rate on both input and output in the current verified pricing data.
How much shared benchmark evidence is available for Gemini 2.5 Flash vs GPT-5 mini?
AI Orbit currently shows 4 shared verified benchmarks where both products have comparable results. One-sided benchmark evidence is shown separately and is not counted as a head-to-head win.