Ember-1 vs Aion-RP 1.0 (8B) compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
Ember-1 — full profile › · Aion-RP 1.0 (8B) — full profile ›
Prices & specs refreshed from live data · olud.ai
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
| Spec | Ember-1 | Aion-RP 1.0 (8B) | Winner |
|---|---|---|---|
| Maker | Fireworks | AionLabs | – |
| Type | Proprietary | Proprietary | – |
| Context window | 1M tokens | 33K tokens | FIEmber-1 |
| Input price | $3/M | $0.8/M | AIAion-RP 1.0 (8B) |
| Output price | $15/M | $1.6/M | AIAion-RP 1.0 (8B) |
| Vision / multimodal | Yes | No | FIEmber-1 |
| Tool / function calling | Yes | No | FIEmber-1 |
| Self-hostable | No (API only) | No (API only) | – |
| License | Proprietary | Proprietary | – |
Aion-RP 1.0 (8B) is ~9.4× cheaper than Ember-1 on output tokens ($1.6 vs $15 per M tokens).
| Capability | Ember-1 | Aion-RP 1.0 (8B) |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✗ |
| Tool / function calling | ✓ | ✗ |
| 1M+ context window | ✓ | ✗ |
| Criterion | Ember-1 | Aion-RP 1.0 (8B) |
|---|---|---|
| Cost-efficiency | 3.0 | 4.5 |
| Context window | 5.0 | 2.5 |
| Openness | 1.5 | 1.5 |
| Self-hosting | 1.0 | 1.0 |
| Multimodality | 5.0 | 2.0 |
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.
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%...
Aion-RP-Llama-3.1-8B ranks the highest in the character evaluation portion of the RPBench-Auto benchmark, a roleplaying-specific variant of Arena-Hard-Auto, where LLMs evaluate each other’s responses. It is a fine-tuned base model...
Aion-RP 1.0 (8B) is cheaper on output ($1.6/M vs $15/M).
Ember-1 offers the larger context window (1M tokens).
Choose Aion-RP 1.0 (8B) for the lower output price ($1.6/M vs $15/M). Choose Ember-1 if you need the larger 1M context window.
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