FIEmber-1 Paid vs 
GPT-3.5 Turbo Paid
Ember-1 vs GPT-3.5 Turbo compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
Ember-1 — full profile › · GPT-3.5 Turbo — full profile ›
Prices & specs refreshed from live data · olud.ai
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
$15 /M outputManaged API (no infra to run)
$1.5 /M outputManaged API (no infra to run)
Ember-1 vs GPT-3.5 Turbo specs
| Spec | Ember-1 | GPT-3.5 Turbo | Winner |
|---|---|---|---|
| Maker | Fireworks | OpenAI | – |
| Type | Proprietary | Proprietary | – |
| Context window | 1M tokens | 16K tokens | FIEmber-1 |
| Input price | $3/M | $0.5/M | |
| Output price | $15/M | $1.5/M | |
| Vision / multimodal | Yes | No | FIEmber-1 |
| Tool / function calling | Yes | Yes | = Tie |
| Self-hostable | No (API only) | No (API only) | – |
| License | Proprietary | Proprietary | – |
Price gap & when to choose each
GPT-3.5 Turbo is ~10× cheaper than Ember-1 on output tokens ($1.5 vs $15 per M tokens).
- You want frontier performance through a managed API
- You need the longer 1M context window
- You value reliability & ecosystem
- You don't want to manage infrastructure
- You want frontier performance through a managed API
- You want the lower output price
- You value reliability & ecosystem
- You don't want to manage infrastructure
Feature comparison
| Capability | Ember-1 | GPT-3.5 Turbo |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✗ |
| Tool / function calling | ✓ | ✓ |
| 1M+ context window | ✓ | ✗ |
Benchmarks: Ember-1 vs GPT-3.5 Turbo
Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).
Benchmark data by Artificial Analysis.
How Ember-1 and GPT-3.5 Turbo score
| Criterion | Ember-1 | GPT-3.5 Turbo |
|---|---|---|
| Cost-efficiency | 3.0 | 4.5 |
| Context window | 5.0 | 2.0 |
| Openness | 1.5 | 1.5 |
| Self-hosting | 1.0 | 1.0 |
| Multimodality | 5.0 | 3.5 |
Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.
What each model is
Ember-1 Paid
Ember-1 is a specialized reasoning model from Fireworks Research, built on [Kimi K3](https://openrouter.ai/moonshotai/kimi-k3). It is designed to make every token go further: it produces shorter reasoning traces, using roughly 40%...
GPT-3.5 Turbo Paid
GPT-3.5 Turbo is OpenAI's fastest model. It can understand and generate natural language or code, and is optimized for chat and traditional completion tasks. Training data up to Sep 2021.
Frequently asked questions
Ember-1 vs GPT-3.5 Turbo — which is cheaper?
GPT-3.5 Turbo is cheaper on output ($1.5/M vs $15/M).
Which has the larger context window?
Ember-1 offers the larger context window (1M tokens).
Ember-1 vs GPT-3.5 Turbo — which should I pick in 2026?
Choose GPT-3.5 Turbo for the lower output price ($1.5/M vs $15/M). Choose Ember-1 if you need the larger 1M context window.
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