Everything about Sakana Namazu

Overview

Released on August 3, 2026, Sakana Namazu is one of the 4 Sakana AI models tracked on this site. Its weights are not published, so it only runs remotely, through the Sakana AI API or partner hosts (5 listed on models.dev). It has a reasoning mode: it can "think" before answering, which helps with multi-step problems but uses more tokens, and therefore more money. That makes it 2 months old as of October 22, 2026.

We file it under mid-range models (34 models in this category on the site).

What do independent benchmarks say?

As of October 22, 2026, Epoch AI publishes no score for Sakana Namazu on our basket's benchmarks. To place it, rely on its specifications and price, then test it on your own cases.

How much does Sakana Namazu cost?

Sakana Namazu costs $0.95 per million input tokens and $4 per million output tokens (developer's price, checked on October 22, 2026).

In practice, an agent task that reads 20,000 tokens and writes 2,000 costs about $0.027, or $27 for 1,000 such tasks.

That is in line with mid-range models, whose median output price is $4.38.

Tokens read back from cache cost $0.15 per million, which helps an agent that keeps resending the same context.

To estimate your own budget, use the agent cost calculator.

Technical specifications

Its context window reaches 262,144 tokens, roughly 393 pages of text at 500 words per page: enough for a long report or several contracts at once. A single answer can run to 65,536 tokens.

It accepts as input: text, image and PDF.

It can call tools (functions, APIs) and return structured JSON output, which makes it a possible foundation for an AI agent.

What is it good for?

Given its category, Sakana Namazu is mainly aimed at a balance between quality and cost, for everyday uses that do not justify a frontier model.

Before adopting it, test it on your own examples: benchmarks measure standard tasks, not your job.

Comparable models

In the same category, the models closest to Sakana Namazu are:

• Mistral Large 4 (Mistral AI, index 79.7)
• Muse Spark 1.2 (Meta, $4.25 per million output tokens)
• Muse Spark 1.1 (Meta, $4.25 per million output tokens)
• Gemini 3.8 Flash (Google DeepMind, index 83.7)