GeminivsGemini

Gemini 3.5 Flash vs Gemini Robotics ER 2

Side-by-side comparison of pricing, task quality, and projected cost at higher scale.

Pricing

Side-by-side pricing

Gemini 3.5 Flash

Fast / Budget

Gemini Robotics ER 2

Fast / Budget
Input $/MTok
$1.50
$1.00
Output $/MTok
$9.00
$5.00
Cache discount
90% off
90% off
Context
1,048.576K
131.072K

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
68
vs
0
Code Review
65
vs
0
Summarization
85
vs
0
Q&A
84
vs
0
Extraction
90
vs
0
Reasoning
60
vs
0
Classification
92
vs
0
Creative Writing
55
vs
0
Gemini 3.5 Flash
Gemini Robotics ER 2

Guidance

When to use Gemini 3.5 Flash vs Gemini Robotics ER 2

Choose Gemini 3.5 Flash when...

  • -You need a larger context window (1,048.576K vs 131.072K)
  • Similar performance; consider provider preference or ecosystem fit.

Choose Gemini Robotics ER 2 when...

  • -Cost matters: 33% cheaper on input tokens

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
Gemini 3.5 Flash
Gemini Robotics ER 2
100K tokens
$0.38
$0.22Cheaper
1M tokens
$3.75
$2.20Cheaper
10M tokens
$37.50
$22.00Cheaper

FAQ

When should I use Gemini 3.5 Flash instead of Gemini Robotics ER 2?

Gemini 3.5 Flash and Gemini Robotics ER 2 perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is Gemini Robotics ER 2 cheaper than Gemini 3.5 Flash?

Yes. Gemini Robotics ER 2 input costs $1.00/MTok vs $1.50/MTok for Gemini 3.5 Flash, saving 33% on input.

What are the context window sizes for Gemini 3.5 Flash and Gemini Robotics ER 2?

Gemini 3.5 Flash has a 1,048.576K token context window. Gemini Robotics ER 2 has a 131.072K token context window.

Track your real costs

Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.