Sakana Namazu

Sakana Namazu is a Japanese-specialized reasoning model from Sakana AI, based on Kimi K2.6 with additional training for Japanese language and business contexts. It is suited for Japanese instruction following, business writing, mathematics, coding, research, and multi-step agent workflows.

Sakana AI may use inputs for model training and improvement by default, with an opt-out available in the Sakana Console. Processing entirely within Japan is not guaranteed.

sakana/sakana-namazu

Organization: Sakana AI
Family: sakana-namazu
Providers: 5
Context: 262,144
Output limit: 65,536
Knowledge: —
Release: 2026-08-03
Updated: 2026-08-03
Weights: Closed
Input: text, image, pdf
Output: text
Capabilities: Tools, Reasoning, Structured, Temperature

Providers

Compare every cataloged offer for this model, including its provider, route, token limits, price, and capabilities.

5 offers · USD per million tokens

Provider	Model ID	Context	Output	Input / output · 1M	Reasoning	Tools	Structured	Details
Kilo Gateway	sakana/sakana-namazu	262,144	65,536	$0.95 / $4.00	Yes	Yes	Yes	View
Merge Gateway	sakana/sakana-namazu	262,144	65,536	$0.95 / $4.00	Yes	Yes	Yes	View
NanoGPT	sakana/sakana-namazu	262,144	65,536	$0.95 / $4.00	Yes	Yes	Yes	View
Sakana AIvia OpenRouter	sakana/sakana-namazu unknown	262,144	65,536	$0.95 / $4.00	Yes	Yes	Yes	View
Sakana AI	sakana-namazu	262,144	65,536	$0.95 / $4.00	Yes	Yes	Yes	View

Prices and limits apply to each offer. A dash means the value is not provided. OpenRouter offers show the hosting provider and routing channel separately.

Pricing

Compare token rates and cache charges across available routes and hosting configurations.

USD per million tokens

Input from$0.95Per 1M input tokens

Output from$4.00Per 1M output tokens

Available offers5Across 5 providers

Lowest listed input and output prices across the offers above; they may belong to different providers. These are base rates, before conditional pricing, discounts or additional fees.

Endpoint price comparisonLatest observed snapshot · 1 lowest-priced configuration

InputOutput

Sakana AIsakana

$0.95$4.00

sakana/sakana-namazuObserved Oct 4, 2026, 11:31 AM UTC

Input: $0.95
Output: $4.00
Cache read: $0.15

Additional fees and pricing conditions

web search: $0.007 / search

Hosting prices through OpenRouter All endpoints and cache rates

Endpoint	Input / 1M	Output / 1M	Cache read / 1M	Cache write / 1M
Sakana AIsakana	$0.95	$4.00	$0.15	—

Each row is a hosting configuration. Open an offer in Providers for its full pricing conditions and additional fees. Endpoint observations may differ from the routing catalog's base price.

Performance

Review reported latency and output-throughput percentiles from the latest observed rolling window.

Latest 30-minute observation

Time to first token · milliseconds

Latency distributionRolling 30-minute snapshot · 1 endpoint

P50P75P90P99

Sakana AIsakana

729–3,845.7 ms

All latency percentiles 1 endpoints

Endpoint	P50	P75	P90	P99
Sakana AIsakana	729 ms	854.25 ms	2,448 ms	3,845.7 ms

Output throughput · tokens per second

Throughput distributionRolling 30-minute snapshot · 1 endpoint

P50P75P90P99

Sakana AIsakana

28–28 t/s

All throughput percentiles 1 endpoints

Endpoint	P50	P75	P90	P99
Sakana AIsakana	28 t/s	28 t/s	28 t/s	28 t/s

Percentiles describe the observed request distribution. These are snapshots of a rolling window, not a historical time series.

Uptime

Compare successful request rates across the latest 5-minute, 30-minute, and 24-hour observations.

Successful requests by window

Availability by endpointCurrent overlapping windows · 1 endpoint

Endpoint5 minutes30 minutes24 hours

Sakana AIsakanaObserved Oct 4, 2026, 11:31 AM UTC

—

100%

Reported by OpenRouter at the time of collection; rate-limited requests are excluded. A dash means no measurement was reported. This is not a live availability check.

Technical details & API

Explore specifications, supported parameters, reasoning controls, and API identifiers for each OpenRouter route.

Current route specifications

sakana/sakana-namazuObserved Oct 4, 2026, 11:31 AM UTC

Context: 262,144
Maximum output: 65,536
Tokenizer: Other
Input: text, image, file
Output: text
Moderation: No
Added to OpenRouter: 2026-08-11

Base URLhttps://openrouter.ai/api/v1

Model IDsakana/sakana-namazu

Version IDsakana/namazu-20260811

Reasoning

Required: No
Enabled by default: Yes
Default effort: high
Supported efforts: high, none

Supported parameters

include_reasoning
reasoning
reasoning_effort
structured_outputs
tool_choice
tools
web_search_options

Frequently asked questions

Answers based on the model metadata and serving offers currently in the catalog.

How much does Sakana Namazu cost?

Listed rates start at $0.95 per million input tokens and $4.00 per million output tokens. Prices vary by provider and configuration; see Pricing for details.

Which providers offer Sakana Namazu?

There are 5 cataloged offers across 5 providers. Compare model IDs, prices and limits in Providers.

What is the context window?

The cataloged model context is 262,144 tokens. Each serving endpoint may apply a different limit.

Does it support tools and structured output?

Tool calling: Yes. Structured output: Yes. Support can vary by endpoint.

Resources

Official product page ↗Official model documentation ↗

Catalog history · 2 recorded revisions

Metadata observations since this model was first cataloged. These are not model release versions.

Sep 14, 2026 · 598f3445c2ef
Sep 12, 2026 · 2df5b1ae7907