AI Models · Paid vs Paid

FIEmber-1 Paid vs PEPerceptron Mk1.5 Paid

Ember-1 vs Perceptron Mk1.5 compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.

Ember-1 — full profile ›  ·  Perceptron Mk1.5 — full profile ›

Prices & specs refreshed from live data · olud.ai

Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.

FIEmber-1PaidFireworks
$3 /M input
$15 /M outputManaged API (no infra to run)
TypeProprietary
Context window1M tokens
MultimodalYes
Self-hostNo
PEPerceptron Mk1.5PaidPerceptron
$0.15 /M input
$1.5 /M outputManaged API (no infra to run)
TypeProprietary
Context window37K tokens
MultimodalYes
Self-hostNo
Choose Perceptron Mk1.5 for the lower output price ($1.5/M vs $15/M). Choose Ember-1 if you need the larger 1M context window.

Ember-1 vs Perceptron Mk1.5 specs

SpecEmber-1Perceptron Mk1.5Winner
MakerFireworksPerceptron–
TypeProprietaryProprietary–
Context window1M tokens37K tokensFIEmber-1
Input price$3/M$0.15/MPEPerceptron Mk1.5
Output price$15/M$1.5/MPEPerceptron Mk1.5
Vision / multimodalYesYes= Tie
Tool / function callingYesYes= Tie
Self-hostableNo (API only)No (API only)–
LicenseProprietaryProprietary–

Price gap & when to choose each

10×cheaper per output token

Perceptron Mk1.5 is ~10× cheaper than Ember-1 on output tokens ($1.5 vs $15 per M tokens).

FIChoose Ember-1 if…
  • 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
PEChoose Perceptron Mk1.5 if…
  • 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

CapabilityEmber-1Perceptron Mk1.5
Open weights (downloadable)✗✗
Self-hostable✗✗
Runs fully offline✗✗
Vision / multimodal✓✓
Tool / function calling✓✓
1M+ context window✓✗

How Ember-1 and Perceptron Mk1.5 score

🤝 Neck and neck on these criteria (3.1 vs 2.9 / 5).
CriterionEmber-1Perceptron Mk1.5
Cost-efficiency3.04.5
Context window5.02.5
Openness1.51.5
Self-hosting1.01.0
Multimodality5.05.0

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.

What each model is

Ember-1 Paid

Fireworks · Proprietary

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%...

Perceptron Mk1.5 Paid

Perceptron · Proprietary

Perceptron Mk1.5 is Perceptron's embodied reasoning model for physical agents. It accepts text, image, video, and audio input, and answers with text plus optional structured annotations: points, boxes, polygons, tracks,...

Frequently asked questions

Ember-1 vs Perceptron Mk1.5 — which is cheaper?

Perceptron Mk1.5 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 Perceptron Mk1.5 — which should I pick in 2026?

Choose Perceptron Mk1.5 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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