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Ember-1 vs GPT-6 Rosalind

Comparing Ember-1 and GPT-6 Rosalind across benchmarks, pricing, and capabilities.

Fireworks AI · OpenAI · Updated for 2026

Which is better?

Ember-1 and GPT-6 Rosalind trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.

On price, Ember-1 is roughly 5.0x 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 Ember-1

  • cost matters — it's about 5.0x 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.

Benchmark wins
—
—
Input price
$3.00 / M
$15.00 / M
Output price
$15.00 / M
$75.00 / M
Context window
1,040,000
—

Individual benchmarks

4 reported for Ember-1 · 0 for GPT-6 Rosalind

No common benchmarks found

Ember-1 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

Ember-1 costs less

For input processing, Ember-1 ($3.00/1M tokens) is 5.0x cheaper than GPT-6 Rosalind ($15.00/1M tokens).

For output processing, Ember-1 ($15.00/1M tokens) is 5.0x cheaper than GPT-6 Rosalind ($75.00/1M tokens).

In conclusion, GPT-6 Rosalind is more expensive than Ember-1.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Mon Nov 09 2026 • llm-stats.com
Fireworks AI
Ember-1
Input tokens$3.00
Output tokens$15.00
Best providerFireworks
OpenAI
GPT-6 Rosalind
Input tokens$15.00
Output tokens$75.00
Best providerOpenAI
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

Only Ember-1 specifies input context (1,040,000 tokens).

Fireworks AI
Ember-1
Input1,040,000 tokens
Output- tokens
OpenAI
GPT-6 Rosalind
Input- tokens
Output- tokens
Mon Nov 09 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

GPT-6 Rosalind supports multimodal inputs, whereas Ember-1 does not.

GPT-6 Rosalind can handle both text and other forms of data like images, making it suitable for multimodal applications.

Ember-1

Text
Images
Audio
Video

GPT-6 Rosalind

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Ember-1

Proprietary

Closed source

GPT-6 Rosalind

Proprietary

Closed source

Release Timeline

When each model was launched

Ember-1 was released on 2026-09-23, while GPT-6 Rosalind was released on 2026-10-30.

GPT-6 Rosalind is 1 month newer than Ember-1.

Ember-1

Sep 23, 2026

1 months ago

GPT-6 Rosalind

Oct 30, 2026

1 weeks ago

1mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

Ember-1 is available from Fireworks. GPT-6 Rosalind is available from OpenAI.

Ember-1

fireworks logo
Fireworks
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M

GPT-6 Rosalind

openai logo
OpenAI
Input Price:Input: $15.00/1MOutput Price:Output: $75.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Ember-1 and GPT-6 Rosalind side-by-side, then vote on the output you prefer.

Ember-1
✓ Preferred
GPT-6 Rosalind
Open in Playground

FAQ

Common questions about Ember-1 vs GPT-6 Rosalind.

Which is better, Ember-1 or GPT-6 Rosalind?

Ember-1 (Fireworks AI) and GPT-6 Rosalind (OpenAI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Ember-1 compare to GPT-6 Rosalind in benchmarks?

Ember-1 scores SWE-Bench Verified: 92.2%, Terminal-Bench 2.1: 82.0%, DeepSWE 1.1: 75.2%, Tau2 Airline: 66.0%.

Is Ember-1 cheaper than GPT-6 Rosalind?

Ember-1 is 5.0x cheaper for input tokens. Ember-1 costs $3.00/M input and $15.00/M output via fireworks. GPT-6 Rosalind costs $15.00/M input and $75.00/M output via openai.

What are the context window sizes for Ember-1 and GPT-6 Rosalind?

Ember-1 supports 1.0M tokens and GPT-6 Rosalind supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Ember-1 and GPT-6 Rosalind?

Key differences include input pricing ($3.00 vs $15.00/M), multimodal support (no vs yes). See the full comparison above for benchmark-by-benchmark results.

Who makes Ember-1 and GPT-6 Rosalind?

Ember-1 is developed by Fireworks AI and GPT-6 Rosalind is developed by OpenAI.