Ember-1 vs Sakana Namazu: Specs & Benchmark Comparison

Ember-1 is developed by Fireworks AI, while Sakana Namazu comes from Sakana AI. Sakana Namazu was released in August 2026, and Ember-1 followed a month later in September 2026. Ember-1 has a published size of about 2.8 trillion parameters; Sakana AI has not disclosed the parameter count of Sakana Namazu.

We have 4 benchmark results for Ember-1 and 3 benchmark results for Sakana Namazu, but they were measured on different benchmarks, so there is no like-for-like scoreboard.

Sakana Namazu is the cheaper API at $0.95 per million input tokens and $4 per million output tokens, roughly 3 times cheaper than Ember-1 at $3 and $15. Ember-1 takes the larger context window at 1M tokens, compared with 256K for Sakana Namazu. Ember-1 accepts text as input, while Sakana Namazu accepts text and images. On tooling, only Ember-1 supports function calling and only Ember-1 offers structured output.

CharacteristicEmber-1Sakana Namazu
CompanyFireworks AISakana AI
Release DateSeptember 23, 2026August 3, 2026
Parameters2.8T—
MultimodalNoYes
Context (input)1.0M256K
Context (output)—256K
Input Price / 1M$3.00$0.95
Output Price / 1M$15.00$4.00
Average Score78.8%92.4%

Verdict

Ember-1 leads in 2 out of 4 comparison categories.

Overall Performance

Both models show comparable average scores: Ember-1 — 0.8, Sakana Namazu — 0.9.

API Cost

Sakana Namazu is 3.6x cheaper: input $0.95/1M vs $3.00/1M tokens.

Context Window

Ember-1 supports a larger context: 1M vs 256K tokens.

Recency

Ember-1 is newer: released 9/23/2026 vs 8/3/2026.

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Frequently Asked Questions

Which is better for coding — Ember-1 or Sakana Namazu?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Ember-1 or Sakana Namazu?
Sakana Namazu is cheaper for input: $0.95 per 1M tokens vs $3.00.
Which has a larger context window — Ember-1 or Sakana Namazu?
Ember-1 supports a larger context: 1,040,000 tokens vs 256,000.

The Ember-1 and Sakana Namazu comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Ember-1 or Sakana Namazu page. See also the complete list of AI model comparisons.