FIEmber-1 Paid vs 
Sonar Pro Search Paid
Ember-1 vs Sonar Pro Search compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
Ember-1 — full profile › · Sonar Pro Search — 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)
$15 /M outputManaged API (no infra to run)
Ember-1 vs Sonar Pro Search specs
| Spec | Ember-1 | Sonar Pro Search | Winner |
|---|---|---|---|
| Maker | Fireworks | Perplexity | – |
| Type | Proprietary | Proprietary | – |
| Context window | 1M tokens | 200K tokens | FIEmber-1 |
| Input price | $3/M | $3/M | = Tie |
| Output price | $15/M | $15/M | = Tie |
| Vision / multimodal | Yes | Yes | = Tie |
| Tool / function calling | Yes | No | FIEmber-1 |
| Self-hostable | No (API only) | No (API only) | – |
| License | Proprietary | Proprietary | – |
Price gap & when to choose each
- 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 value reliability & ecosystem
- You don't want to manage infrastructure
Feature comparison
| Capability | Ember-1 | Sonar Pro Search |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✓ |
| Tool / function calling | ✓ | ✗ |
| 1M+ context window | ✓ | ✗ |
How Ember-1 and Sonar Pro Search score
| Criterion | Ember-1 | Sonar Pro Search |
|---|---|---|
| Cost-efficiency | 3.0 | 3.0 |
| Context window | 5.0 | 4.0 |
| 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%...
Sonar Pro Search Paid
Exclusively available on the OpenRouter API, Sonar Pro's new Pro Search mode is Perplexity's most advanced agentic search system. It is designed for deeper reasoning and analysis. Pricing is based...
Frequently asked questions
Ember-1 vs Sonar Pro Search — which is cheaper?
Ember-1 is cheaper on output ($15/M vs $15/M).
Which has the larger context window?
Ember-1 offers the larger context window (1M tokens).
Ember-1 vs Sonar Pro Search — which should I pick in 2026?
Choose Ember-1 for the lower output price ($15/M vs $15/M). It also gives you the larger 1M context window.
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