Ember-1 vs GPT-4.1 nano
Ember-1 leads the LLM Stats Score 43.1 to 1.6. GPT-4.1 nano is 34.3x cheaper per token.
Fireworks AI · OpenAI · Updated for 2026
Which is better?
Ember-1 leads the overall LLM Stats Score 43.1 to 1.6, ranking #51 overall.
On price, GPT-4.1 nano is roughly 34.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
GPT-4.1 nano also accepts a larger context window (1,047,576 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 Ember-1
- overall performance matters — it scores 43.1 and ranks #51 on LLM Stats
- your work emphasizes reasoning and coding — it leads those capability indexes
- you want the most recent training data — it shipped Sep 2026
Choose GPT-4.1 nano
- cost matters — it's about 34.3x cheaper per token
- you process long inputs — it offers a 1,047,576 token context window
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
4 reported for Ember-1 · 24 for GPT-4.1 nano
Ember-1 and GPT-4.1 nanodon'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, Ember-1 ($3.00/1M tokens) is 30.0x more expensive than GPT-4.1 nano ($0.10/1M tokens).
For output processing, Ember-1 ($15.00/1M tokens) is 37.5x more expensive than GPT-4.1 nano ($0.40/1M tokens).
In conclusion, Ember-1 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
GPT-4.1 nano accepts 1,047,576 input tokens compared to Ember-1's 1,040,000 tokens. Only GPT-4.1 nano specifies output context (32,768 tokens).
Input capabilities
Documented input modalities across available providers
GPT-4.1 nano supports multimodal inputs, whereas Ember-1 does not.
GPT-4.1 nano can handle both text and other forms of data like images, making it suitable for multimodal applications.
Ember-1
GPT-4.1 nano
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
Ember-1 was released on 2026-09-23, while GPT-4.1 nano was released on 2025-04-14.
Ember-1 is 18 months newer than GPT-4.1 nano.
Sep 23, 2026
2 weeks ago
1.4yr newerApr 14, 2025
1.5 years ago
Knowledge Cutoff
When training data ends
GPT-4.1 nano has a documented knowledge cutoff of 2024-05-31, while Ember-1'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 Ember-1's cutoff date.
—
May 2024
Provider Availability
Ember-1 is available from Fireworks. GPT-4.1 nano is available from OpenAI.
Ember-1
GPT-4.1 nano
Outputs Comparison
Judge for yourself.
Run your own prompts against Ember-1 and GPT-4.1 nano side-by-side, then vote on the output you prefer.
FAQ
Common questions about Ember-1 vs GPT-4.1 nano.