Gemini 1.5 Pro vs Gemini 3.5 Transcribe Live
Gemini 3.5 Transcribe Live significantly outperforms across most benchmarks. Gemini 1.5 Pro is 1.8x cheaper per token.
Google · Google · Updated for 2026
Which is better?
Gemini 1.5 Pro and Gemini 3.5 Transcribe Live trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.
In the 1 individual benchmarks reported for both models, Gemini 3.5 Transcribe Live wins 1; this is a narrower head-to-head signal than the composite indexes.
On price, Gemini 1.5 Pro is roughly 1.8x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Gemini 1.5 Pro
- cost matters — it's about 1.8x cheaper per token
Choose Gemini 3.5 Transcribe Live
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
- you want the most recent training data — it shipped Aug 2026
At a glance
The differences that matter most.
Individual benchmarks
23 reported for Gemini 1.5 Pro · 1 for Gemini 3.5 Transcribe Live
Gemini 1.5 Pro outperforms in 0 benchmarks, while Gemini 3.5 Transcribe Live is better at 1 benchmark (FLEURS).
Gemini 3.5 Transcribe Live significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Gemini 1.5 Pro ($2.50/1M tokens) is 1.4x cheaper than Gemini 3.5 Transcribe Live ($3.50/1M tokens).
For output processing, Gemini 1.5 Pro ($10.00/1M tokens) is 2.1x cheaper than Gemini 3.5 Transcribe Live ($21.00/1M tokens).
In conclusion, Gemini 3.5 Transcribe Live is more expensive than Gemini 1.5 Pro.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Only Gemini 1.5 Pro specifies input context (2,097,152 tokens). Only Gemini 1.5 Pro specifies output context (8,192 tokens).
Input capabilities
Documented input modalities across available providers
Both Gemini 1.5 Pro and Gemini 3.5 Transcribe Live support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Gemini 1.5 Pro
Gemini 3.5 Transcribe Live
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Gemini 1.5 Pro was released on 2024-05-01, while Gemini 3.5 Transcribe Live was released on 2026-08-26.
Gemini 3.5 Transcribe Live is 28 months newer than Gemini 1.5 Pro.
May 1, 2024
2.4 years ago
Aug 26, 2026
1 weeks ago
2.3yr newerKnowledge Cutoff
When training data ends
Gemini 1.5 Pro has a documented knowledge cutoff of 2023-11-01, while Gemini 3.5 Transcribe Live's cutoff date is not specified.
We can confirm Gemini 1.5 Pro's training data extends to 2023-11-01, but cannot make a direct comparison without Gemini 3.5 Transcribe Live's cutoff date.
Nov 2023
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Provider Availability
Gemini 1.5 Pro is available from Google. Gemini 3.5 Transcribe Live is available from Google.
Gemini 1.5 Pro
Gemini 3.5 Transcribe Live
Outputs Comparison
Judge for yourself.
Run your own prompts against Gemini 1.5 Pro and Gemini 3.5 Transcribe Live side-by-side, then vote on the output you prefer.
FAQ
Common questions about Gemini 1.5 Pro vs Gemini 3.5 Transcribe Live.