tokevenGPTvsGemini
GPT 5.5 vs Gemini Robotics ER 2
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
GPT 5.5
FlagshipGemini Robotics ER 2
Fast / BudgetInput $/MTok
$5.00
$1.00
Output $/MTok
$30.00
$5.00
Cache discount
90% off
90% off
Context
1,050K
131.072K
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
91
vs
0
Code Review
90
vs
0
Summarization
89
vs
0
Q&A
90
vs
0
Extraction
87
vs
0
Reasoning
95
vs
0
Classification
85
vs
0
Creative Writing
91
vs
0
GPT 5.5
Gemini Robotics ER 2
Guidance
When to use GPT 5.5 vs Gemini Robotics ER 2
Choose GPT 5.5 when...
- -You need a larger context window (1,050K vs 131.072K)
- Similar performance; consider provider preference or ecosystem fit.
Choose Gemini Robotics ER 2 when...
- -Cost matters: 80% cheaper on input tokens
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
GPT 5.5
Gemini Robotics ER 2
100K tokens
$1.25
$0.22Cheaper
1M tokens
$20.50
$2.20Cheaper
10M tokens
$205.00
$22.00Cheaper
FAQ
When should I use GPT 5.5 instead of Gemini Robotics ER 2?
GPT 5.5 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 GPT 5.5?
Yes. Gemini Robotics ER 2 input costs $1.00/MTok vs $5.00/MTok for GPT 5.5, saving 80% on input.
What are the context window sizes for GPT 5.5 and Gemini Robotics ER 2?
GPT 5.5 has a 1,050K token context window. Gemini Robotics ER 2 has a 131.072K token context window.
Go deeper on either model
Per-call cost calculators, provider lineups, and price history for both models on this page.
Other comparisons
How GPT 5.5 and Gemini Robotics ER 2 stack up against the rest of the field.
Track your real costs
Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.