/Tech2h ago

Sakana AI launches Fugu-Ultra on OpenRouter with a 1 million token context window and 128,000 output limit

Story Overview

Sakana AI has placed its higher-performance Fugu-Ultra orchestration system on OpenRouter, giving any user with an API key a 1-million-token context window, 128k maximum output, and $5-per-million input pricing for a model that dynamically routes work across other frontier systems rather than operating as a single network.

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#17

Original post

hardmaru@hardmaru#17inTech

Excited to partner with @OpenRouter ⚡

Products like OpenRouter Fusion and Sakana Fugu have sparked a serious conversation about dependency and resilience in AI.

I believe this is just the start of a great architectural shift to come in AI development.

Sakana AI@SakanaAILabs

Fugu-Ultra is now live on @OpenRouter! ⚡

We share a core vision with the OpenRouter team: the future of AI isn’t a single monolithic model, but the collective intelligence of the world’s best models working together.

Try it: https://openrouter.ai/sakana/fugu-ultra 🐡

9:08 AM · Jun 24, 2026 · 13.7K Views

Developer Impact

Agentic tools already routing real workloads

Early traffic is concentrated in coding and multi-step agent platforms, with observed throughput near 56 tokens per second and 100 percent uptime on the OpenRouter endpoint.

Pricing Watch

Caching softens listed rates but leaves pool hidden

Prompt caching at roughly 79 percent hit rate drops effective input cost toward $1.70 per million while output stays near $30, yet the specific frontier models being orchestrated are never revealed to callers.

Sentiment

Positive users praise Sakana AI's Fugu-Ultra launch on OpenRouter for advancing multi-model routing and collective intelligence over single models, while negative users criticize crashes, high costs, and unreliable performance.

Pos

69.6%

Neg

30.4%

45 comments with sentiment.

Cluster Engagement

Digg Deeper

No Digg Deeper questions have been answered for this story yet.

Related links

Fugu Ultra - API Pricing & Providers

OPENROUTER.AIVia

#1255

Posts from X

Most Activity

VIEWS3.8KBOOKMARKS4LIKES24REPLIES3

Alex Atallah@alexatallah

I keep telling our customers that neurodiversity in AI is going to be a critical goal that all software companies will have to act on.

@SakanaAILabs shares this vision - now, you can use Fugu Ultra through OpenRouter, blending results from the best models!

Sakana AI@SakanaAILabs

Fugu-Ultra is now live on @OpenRouter! ⚡

We share a core vision with the OpenRouter team: the future of AI isn’t a single monolithic model, but the collective intelligence of the world’s best models working together.

Try it: https://openrouter.ai/sakana/fugu-ultra 🐡

2h3.8K244

RETWEETS10

OpenRouter@OpenRouter

Fugu Ultra by @SakanaAILabs is live on OpenRouter!

Excited to see more multi-model systems pushing the frontier.

Sakana AI@SakanaAILabs

Fugu-Ultra is now live on @OpenRouter! ⚡

We share a core vision with the OpenRouter team: the future of AI isn’t a single monolithic model, but the collective intelligence of the world’s best models working together.

Try it: https://openrouter.ai/sakana/fugu-ultra 🐡

2h18.9K13816

OpenRouter@OpenRouter

Try it: https://openrouter.ai/sakana/fugu-ultra

2h1.3K4

OpenRouter@OpenRouter

Read more: https://sakana.ai/fugu-release/

2h1.1K4

zorluhan@zorluhanzorlu

@SakanaAILabs @OpenRouter Openrouter has auto-route function and much cheaper than Sakana Ai.

2h1331

Sakanai HQPlus@SakanaAiiHQ_

@SakanaAILabs @OpenRouter Something is Cooking....

June, 29th 12AM UTC.

Only Pre Registrants will be Eligible to Mint a Genesis Badge.

Get Enrolled for Phase 1 ⤵️ https://tinyurl.com/SakanaAILabs

1h121

Tabib hasan@Tabib_Hasan_

@SakanaAILabs @OpenRouter @grok tell me why I should use this model instead of other frontier ones? is there any reason I should?

1h108

Strata@ChainZenit

@SakanaAILabs @OpenRouter the multispecies model approach is actually so smart

2h2392

Sakanai HQPlus@SakanaAiiHQ_

@SakanaAILabs @OpenRouter Something is Cooking....

June, 29th 12AM UTC. Only Pre Registrants will be Eligible to Mint a Genesis Badge. Get Enrolled for Phase 1 ⤵️ https://tinyurl.com/SakanaAILabs

1h51

Sakanai HQPlus@SakanaAiiHQ_

@SakanaAILabs @OpenRouter Something is Cooking....

June, 29th 12AM UTC. Only Pre Registrants will be Eligible to Mint a Genesis Badge. Get Enrolled for Phase 1 ⤵️ https://tinyurl.com/SakanaAILabs

1h41

Sakanai HQPlus@SakanaAiiHQ_

@SakanaAILabs @OpenRouter Something is Cooking....

June, 29th 12AM UTC. Only Pre Registrants will be Eligible to Mint a Genesis Badge. Get Enrolled for Phase 1 ⤵️ https://tinyurl.com/SakanaAILabs

1h41

Kanika@KanikaBK

@SakanaAILabs @OpenRouter Future!!

2h299

Sakanai HQPlus@SakanaAiiHQ_

@SakanaAILabs @OpenRouter Something is Cooking.... June, 29th 12AM UTC. Only Pre Registrants will be Eligible to Mint a Genesis Badge. Get Enrolled for Phase 1 ⤵️ https://tinyurl.com/SakanaAILabs

1h11

rardedd@rardedd

@SakanaAILabs @OpenRouter Fuck your model

2h195

Daniel@DanielWhit21874

@SakanaAILabs @OpenRouter Need to try this model for sure !!

2h177

Meris Dabhi@Merisdabhi

@SakanaAILabs @OpenRouter wait is fugu-ultra multi-agent or single model?

2h130

Keivan@Keivansamani

@SakanaAILabs @OpenRouter Yaaaaaas betch

2h104

Sakanai HQPlus@SakanaAiiHQ_

@SakanaAILabs @OpenRouter Something is Cooking....

June, 29th 12AM UTC. Only Pre Registrants will be Eligible to Mint a Genesis Badge. Get Enrolled for Phase 1 ⤵️ https://tinyurl.com/SakanaAILabs

1h1

Grok@grok

Fugu-Ultra isn’t another monolithic frontier model. It’s a learned multi-agent orchestrator: one API that intelligently routes, plans, delegates across a pool of strong models (and itself recursively), then verifies/synthesizes.

**Why consider it?** - Strong on hard multi-step tasks: tops or matches Fable 5 / GPT-5.5-level on LiveCodeBench (93.2), SWE-Bench Pro (73.7), GPQA Diamond, plus real demos in CAD, blindfold chess, code execution, and agentic workflows. - Gets “best of many” without you managing routers or MoA setups. - Evolves as better models get added to the pool.

**When to skip it:** - Simple or speed-sensitive queries → regular frontier models (or even base Fugu) are faster/cheaper. - Pricing is premium ($5/M in, $30/M out on OpenRouter).

Test it on OpenRouter for your toughest problems and compare directly. It shines when single-model reliability falls short.

1h271

aditya@adiaddxyz

@SakanaAILabs @OpenRouter missed the chance to name it “fuga” from jjk

1h87