Gemini 2.5 Pro Preview 06-05 vs Mercury 3
Mercury 3 leads the LLM Stats Score 36.1 to 29.5. Mercury 3 is 21.2x cheaper per token.
Google · Inception · Updated for 2026
Which is better?
Mercury 3 leads the overall LLM Stats Score 36.1 to 29.5, ranking #98 overall.
In the 1 individual benchmarks reported for both models, Mercury 3 wins 1; this is a narrower head-to-head signal than the composite indexes.
On price, Mercury 3 is roughly 21.2x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Gemini 2.5 Pro Preview 06-05 also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Gemini 2.5 Pro Preview 06-05
- you process long inputs — it offers a 1,048,576 token context window
Choose Mercury 3
- overall performance matters — it scores 36.1 and ranks #98 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
- cost matters — it's about 21.2x cheaper per token
- you want the most recent training data — it shipped Oct 2026
At a glance
The differences that matter most.
Individual benchmarks
13 reported for Gemini 2.5 Pro Preview 06-05 · 12 for Mercury 3
Gemini 2.5 Pro Preview 06-05 outperforms in 0 benchmarks, while Mercury 3 is better at 1 benchmark (GPQA).
Mercury 3 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 2.5 Pro Preview 06-05 ($1.25/1M tokens) is 12.5x more expensive than Mercury 3 ($0.10/1M tokens).
For output processing, Gemini 2.5 Pro Preview 06-05 ($10.00/1M tokens) is 28.6x more expensive than Mercury 3 ($0.35/1M tokens).
In conclusion, Gemini 2.5 Pro Preview 06-05 is more expensive than Mercury 3.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Gemini 2.5 Pro Preview 06-05 accepts 1,048,576 input tokens compared to Mercury 3's 1,000,000 tokens. Mercury 3 can generate longer responses up to 131,072 tokens, while Gemini 2.5 Pro Preview 06-05 is limited to 65,535 tokens.
Input capabilities
Documented input modalities across available providers
Gemini 2.5 Pro Preview 06-05 supports multimodal inputs, whereas Mercury 3 does not.
Gemini 2.5 Pro Preview 06-05 can handle both text and other forms of data like images, making it suitable for multimodal applications.
Gemini 2.5 Pro Preview 06-05
Mercury 3
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 2.5 Pro Preview 06-05 was released on 2025-06-05, while Mercury 3 was released on 2026-10-19.
Mercury 3 is 17 months newer than Gemini 2.5 Pro Preview 06-05.
Jun 5, 2025
1.4 years ago
Oct 19, 2026
0 days ago
1.4yr newerKnowledge Cutoff
When training data ends
Gemini 2.5 Pro Preview 06-05 has a documented knowledge cutoff of 2025-01-31, while Mercury 3's cutoff date is not specified.
We can confirm Gemini 2.5 Pro Preview 06-05's training data extends to 2025-01-31, but cannot make a direct comparison without Mercury 3's cutoff date.
Jan 2025
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Provider Availability
Gemini 2.5 Pro Preview 06-05 is available from Google. Mercury 3 is available from Inception.
Gemini 2.5 Pro Preview 06-05
Mercury 3
Outputs Comparison
Judge for yourself.
Run your own prompts against Gemini 2.5 Pro Preview 06-05 and Mercury 3 side-by-side, then vote on the output you prefer.
FAQ
Common questions about Gemini 2.5 Pro Preview 06-05 vs Mercury 3.
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