GPT-4.1 nano vs GPT-6 Rosalind
Comparing GPT-4.1 nano and GPT-6 Rosalind across benchmarks, pricing, and capabilities.
OpenAI · OpenAI · Updated for 2026
Which is better?
GPT-4.1 nano and GPT-6 Rosalind trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.
On price, GPT-4.1 nano is roughly 171.4x 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 GPT-4.1 nano
- cost matters — it's about 171.4x cheaper per token
Choose GPT-6 Rosalind
- you want the most recent training data — it shipped Oct 2026
At a glance
The differences that matter most.
Individual benchmarks
24 reported for GPT-4.1 nano · 0 for GPT-6 Rosalind
GPT-4.1 nano and GPT-6 Rosalinddon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, GPT-4.1 nano ($0.10/1M tokens) is 150.0x cheaper than GPT-6 Rosalind ($15.00/1M tokens).
For output processing, GPT-4.1 nano ($0.40/1M tokens) is 187.5x cheaper than GPT-6 Rosalind ($75.00/1M tokens).
In conclusion, GPT-6 Rosalind is more expensive than GPT-4.1 nano.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Only GPT-4.1 nano specifies input context (1,047,576 tokens). Only GPT-4.1 nano specifies output context (32,768 tokens).
Input capabilities
Documented input modalities across available providers
Both GPT-4.1 nano and GPT-6 Rosalind support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-4.1 nano
GPT-6 Rosalind
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
GPT-4.1 nano was released on 2025-04-14, while GPT-6 Rosalind was released on 2026-10-30.
GPT-6 Rosalind is 19 months newer than GPT-4.1 nano.
Apr 14, 2025
1.6 years ago
Oct 30, 2026
5 days ago
1.5yr newerKnowledge Cutoff
When training data ends
GPT-4.1 nano has a documented knowledge cutoff of 2024-05-31, while GPT-6 Rosalind's cutoff date is not specified.
We can confirm GPT-4.1 nano's training data extends to 2024-05-31, but cannot make a direct comparison without GPT-6 Rosalind's cutoff date.
May 2024
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Provider Availability
GPT-4.1 nano is available from OpenAI. GPT-6 Rosalind is available from OpenAI.
GPT-4.1 nano
GPT-6 Rosalind
Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-4.1 nano and GPT-6 Rosalind side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-4.1 nano vs GPT-6 Rosalind.