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ChatGPT-4o Latest vs Ember-1

Ember-1 leads the LLM Stats Score 43.1 to 24.9. ChatGPT-4o Latest is 1.4x cheaper per token.

OpenAI · Fireworks AI · Updated for 2026

Which is better?

Ember-1 leads the overall LLM Stats Score 43.1 to 24.9, ranking #51 overall.

On price, ChatGPT-4o Latest is roughly 1.4x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Ember-1 also accepts a larger context window (1,040,000 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 ChatGPT-4o Latest

  • cost matters — it's about 1.4x cheaper per token

Choose Ember-1

  • overall performance matters — it scores 43.1 and ranks #51 on LLM Stats
  • you process long inputs — it offers a 1,040,000 token context window
  • you want the most recent training data — it shipped Sep 2026

At a glance

The differences that matter most.

ChatGPT-4o Latest
OpenAI
Ember-1
Fireworks AI
Core performance indexes
LLM Stats Score
24.9
#176
43.1
#51
Reasoning
24.0
#175
38.6
#71
Cost, coverage & limits
Benchmark wins
—
—
Input price
$2.50 / M
$3.00 / M
Output price
$10.00 / M
$15.00 / M
Context window
128,000
1,040,000

Individual benchmarks

1 reported for ChatGPT-4o Latest · 4 for Ember-1

No common benchmarks found

ChatGPT-4o Latest and Ember-1don'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

ChatGPT-4o Latest costs less

For input processing, ChatGPT-4o Latest ($2.50/1M tokens) is 1.2x cheaper than Ember-1 ($3.00/1M tokens).

For output processing, ChatGPT-4o Latest ($10.00/1M tokens) is 1.5x cheaper than Ember-1 ($15.00/1M tokens).

In conclusion, Ember-1 is more expensive than ChatGPT-4o Latest.*

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

Lowest available price from all providers
Fri Oct 09 2026 • llm-stats.com
OpenAI
ChatGPT-4o Latest
Input tokens$2.50
Output tokens$10.00
Best providerOpenAI
Fireworks AI
Ember-1
Input tokens$3.00
Output tokens$15.00
Best providerFireworks
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

Ember-1 accepts 1,040,000 input tokens compared to ChatGPT-4o Latest's 128,000 tokens. Only ChatGPT-4o Latest specifies output context (16,384 tokens).

OpenAI
ChatGPT-4o Latest
Input128,000 tokens
Output16,384 tokens
Fireworks AI
Ember-1
Input1,040,000 tokens
Output- tokens
Fri Oct 09 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

ChatGPT-4o Latest supports multimodal inputs, whereas Ember-1 does not.

ChatGPT-4o Latest can handle both text and other forms of data like images, making it suitable for multimodal applications.

ChatGPT-4o Latest

Text
Images
Audio
Video

Ember-1

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.

ChatGPT-4o Latest

Proprietary

Closed source

Ember-1

Proprietary

Closed source

Release Timeline

When each model was launched

ChatGPT-4o Latest was released on 2024-05-13, while Ember-1 was released on 2026-09-23.

Ember-1 is 29 months newer than ChatGPT-4o Latest.

ChatGPT-4o Latest

May 13, 2024

2.4 years ago

Ember-1

Sep 23, 2026

2 weeks ago

2.4yr 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

ChatGPT-4o Latest is available from OpenAI. Ember-1 is available from Fireworks.

ChatGPT-4o Latest

openai logo
OpenAI
Input Price:Input: $2.50/1MOutput Price:Output: $10.00/1M

Ember-1

fireworks logo
Fireworks
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against ChatGPT-4o Latest and Ember-1 side-by-side, then vote on the output you prefer.

ChatGPT-4o Latest
✓ Preferred
Ember-1
Open in Playground

FAQ

Common questions about ChatGPT-4o Latest vs Ember-1.

Which is better, ChatGPT-4o Latest or Ember-1?

Ember-1 leads the LLM Stats Score 43.1 to 24.9. ChatGPT-4o Latest is made by OpenAI and Ember-1 is made by Fireworks AI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does ChatGPT-4o Latest compare to Ember-1 in benchmarks?

ChatGPT-4o Latest scores GPQA: 84.0%. Ember-1 scores SWE-Bench Verified: 92.2%, Terminal-Bench 2.1: 82.0%, DeepSWE 1.1: 75.2%, Tau2 Airline: 66.0%.

Is ChatGPT-4o Latest cheaper than Ember-1?

ChatGPT-4o Latest is 1.2x cheaper for input tokens. ChatGPT-4o Latest costs $2.50/M input and $10.00/M output via openai. Ember-1 costs $3.00/M input and $15.00/M output via fireworks.

What are the context window sizes for ChatGPT-4o Latest and Ember-1?

ChatGPT-4o Latest supports 128K tokens and Ember-1 supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between ChatGPT-4o Latest and Ember-1?

Key differences include LLM Stats Score (24.9 vs 43.1), context window (128K vs 1.0M), input pricing ($2.50 vs $3.00/M), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes ChatGPT-4o Latest and Ember-1?

ChatGPT-4o Latest is developed by OpenAI and Ember-1 is developed by Fireworks AI.

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