Question 1

What does this Gemini Robotics-ER 1.6 Preview vs GPT-4.1 comparison cover?

Accepted Answer

It brings together documented inputs and outputs, token limits, deployment terms and available pricing. When both models have source-linked, verified results on a shared benchmark, those results are shown with their individual sources. The comparison is a starting point for evaluating your own workload.

Question 2

Which is cheaper: Gemini Robotics-ER 1.6 Preview or GPT-4.1?

Accepted Answer

Gemini Robotics-ER 1.6 Preview lists $1.00 input and $5.00 output per 1M tokens. GPT-4.1 lists $2.00 input and $8.00 output. The cheaper workload depends on the mix of input and output. Long-context tiers, caching, batch processing and retries can change the bill.

Question 3

Which has the larger context window: Gemini Robotics-ER 1.6 Preview or GPT-4.1?

Accepted Answer

Gemini Robotics-ER 1.6 Preview lists 131.07K tokens and GPT-4.1 lists 1.05M. GPT-4.1 therefore has the larger recorded context window, but capacity alone is not a quality score.

Question 4

Which is faster: Gemini Robotics-ER 1.6 Preview or GPT-4.1?

Accepted Answer

There is no matched speed measurement for both models with the same source, host, region and date. Test the same prompts at your expected concurrency and measure time to the first useful response as well as complete task time.

Question 5

What input and output types do Gemini Robotics-ER 1.6 Preview and GPT-4.1 support?

Accepted Answer

Gemini Robotics-ER 1.6 Preview records text, image, video, audio input and text output. GPT-4.1 records text, image, pdf input and text output. “Not documented” means the current source record is incomplete; it does not prove that a modality is unsupported.

Question 6

Should I choose Gemini Robotics-ER 1.6 Preview or GPT-4.1?

Accepted Answer

Consider Gemini Robotics-ER 1.6 Preview if you need larger maximum output or a lower listed input rate or a lower listed output rate. Consider GPT-4.1 if you need larger context. Test both on the same representative examples and judge the output against your acceptance criteria. Include tool failures, retries and the time to a completed task.

Specification	Gemini Robotics-ER 1.6 Preview	GPT-4.1
Provider	Google	OpenAI
Listed pricing route	Google	OpenAI
Model family	gemini	gpt
Accepted inputs	text, image, video, audio	text, image, pdf
Produced outputs	text	text
Context window	131.07K	1.05MHigher
Max output	65.54KHigher	32.77K
Input price / 1M	$1.00Lower	$2.00
Output price / 1M	$5.00Lower	$8.00
Reasoning mode	Documented	Not documented
Tool calling	Documented	Documented
Image input	Documented	Documented
Audio input	Documented	Not documented
Structured output	Documented	Documented
License	Proprietary	Proprietary

Gemini Robotics-ER 1.6 Preview vs GPT-4.1

Gemini Robotics-ER 1.6 Preview

GPT-4.1

Key differences

Pricing, limits and capabilities

Which model should you choose?

Documentation and model profiles

Questions people ask

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