Model comparison
Gemini 3 Pro Deep Think vs GPT-4o mini
Head-to-head evidence from 0 shared benchmark results across 0 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Gemini 3 Pro Deep Think #45 (Estimated); GPT-4o mini #192 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Gemini 3 Pro Deep Think and GPT-4o mini share 0 comparable benchmark results. 0 of 8 categories are comparable. 2 results are unique to Gemini 3 Pro Deep Think; 10 to GPT-4o mini.
Updated July 28, 2026- Shared results
- 0
- Gemini 3 Pro Deep Think only
- 2
- GPT-4o mini only
- 10
- Comparable categories
- 0 / 8
Benchmark data for Gemini 3 Pro Deep Think and GPT-4o mini is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 0 shared benchmark results across 0 evidence categories; 0 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
BenchLM has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.
Gemini 3 Pro Deep Think has the larger context window at 2M, compared with 128K for GPT-4o mini.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Gemini 3 Pro Deep Think | GPT-4o mini | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Gemini 3 Pro Deep ThinkNot available | GPT-4o mini$0.15 input / $0.6 output | A complete price comparison is not available. |
| Generation speedtokens per second | Gemini 3 Pro Deep ThinkNot available | GPT-4o mini33 tok/s | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Gemini 3 Pro Deep ThinkNot available | GPT-4o mini3.16 s | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Gemini 3 Pro Deep Think2M | GPT-4o mini128K | Gemini 3 Pro Deep Think lists the larger context window. |
Benchmark Deep Dive
Agentic3 benchmarks
Coding2 benchmarks
Reasoning2 benchmarks
Knowledge3 benchmarks
Multimodal1 benchmarks
| Benchmark | Gemini 3 Pro Deep Think | GPT-4o mini | Result |
|---|---|---|---|
| AA-MMMU-ProSource | — | 41.5% | Not comparable |
Inst. Following1 benchmarks
| Benchmark | Gemini 3 Pro Deep Think | GPT-4o mini | Result |
|---|---|---|---|
| AA-IFBenchSource | — | 31.0% | Not comparable |
Frequently Asked Questions (3)
Can I compare Gemini 3 Pro Deep Think and GPT-4o mini on BenchLM yet?
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
Why does this comparison show “coming soon”?
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
What data is available for Gemini 3 Pro Deep Think and GPT-4o mini today?
Gemini 3 Pro Deep Think: Pricing unavailable GPT-4o mini: $0.15 input / $0.60 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
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The model to choose, the cheaper alternative, and the release we would wait on.
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