Model comparison
Gemini 1.5 Pro vs Gemini 3 Pro Deep Think
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 1.5 Pro #185 (Supported); Gemini 3 Pro Deep Think #41 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Gemini 1.5 Pro and Gemini 3 Pro Deep Think share 0 comparable benchmark results. 0 of 8 categories are comparable. 6 results are unique to Gemini 1.5 Pro; 2 to Gemini 3 Pro Deep Think.
Updated July 21, 2026- Shared results
- 0
- Gemini 1.5 Pro only
- 6
- Gemini 3 Pro Deep Think only
- 2
- Comparable categories
- 0 / 8
Benchmark data for Gemini 1.5 Pro and Gemini 3 Pro Deep Think 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.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Gemini 1.5 Pro | Gemini 3 Pro Deep Think | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Gemini 1.5 Pro$1.25 input / $5 output | Gemini 3 Pro Deep ThinkNot available | A complete price comparison is not available. |
| Generation speedtokens per second | Gemini 1.5 ProNot available | Gemini 3 Pro Deep ThinkNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Gemini 1.5 ProNot available | Gemini 3 Pro Deep ThinkNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Gemini 1.5 Pro2M | Gemini 3 Pro Deep Think2M | Listed context windows are equal. |
Benchmark Deep Dive
Coding2 benchmarks
Reasoning2 benchmarks
Knowledge3 benchmarks
Multimodal1 benchmarks
| Benchmark | Gemini 1.5 Pro | Gemini 3 Pro Deep Think | Result |
|---|---|---|---|
| AA-MMMU-ProSource | 55.0% | — | Not comparable |
Frequently Asked Questions (3)
Can I compare Gemini 1.5 Pro and Gemini 3 Pro Deep Think 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 1.5 Pro and Gemini 3 Pro Deep Think today?
Gemini 1.5 Pro: $1.25 input / $5.00 output per 1M tokens Gemini 3 Pro Deep Think: Pricing unavailable Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
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