Overview
Fugu Max is the cost-performance model in Sakana AI's Fugu family. Rather than a single monolithic model, Fugu is a learned multi-agent orchestration system: a language model trained to route...
Our take
The primary trade-off with Fugu Max is its above-average API pricing versus its extensive context window and built-in capabilities. While alternatives like Claude or ChatGPT offer general AI chatbot functionality, Fugu Max distinguishes itself with a 1,000,000-token context window, significantly larger than many competitors, making it suitable for tasks requiring extensive document analysis, such as summarising a lengthy research paper or processing a large dataset for insights. It supports vision for image input, tool/function calling for agent-style workflows, and provides structured JSON outputs, alongside native web search. The model also incorporates a reasoning mode for complex problem-solving. This makes it ideal for developers or researchers who require processing large volumes of textual and visual data, and who can justify the $2 per 1M input tokens. Those prioritising cost over maximum context length may find other options more suitable.
How Sakana: Fugu Max stacks up
Among the 383 chatbots & llms tools in our directory, it ranks #3 of 369 on quality (9.2/10), 15% above the 369-tool average of 8.0, and its $2/1M input-token rate is in the premium end — 18% pricier than the 359-model average of $1.70/1M.
Weighing quality against cost, Sakana: Fugu Max's cost-per-quality-point of $0.22 places it at #267 of 337 for value among chatbots & llms tools.
Sakana: Fugu Max in depth
Sakana: Fugu Max, built by Sakana AI, sits in the chatbots & llms space and is a paid tool starting at $2.00/1M tokens. Our editors rate it 9.2 out of 10 based on capability, ecosystem and value. It handles a context window of 1,000,000 tokens.
On the feature side, Sakana: Fugu Max brings 1,000,000-token context window, vision (image input), reasoning / chain-of-thought and tool / function calling. These are the capabilities that most shape day-to-day use and separate it from thinner alternatives.
Its biggest strength is large 1,000,000-token context window, bigger than most models listed here, while the main trade-off to weigh is that above-average api pricing ($2 per 1m input tokens). Keep both in mind when deciding whether it fits your workflow.
Sakana: Fugu Max is most often chosen for research and writing. If that matches your goals, it's a strong candidate to shortlist.
Key features
- ✓1,000,000-token context window
- ✓Vision (image input)
- ✓Reasoning / chain-of-thought
- ✓Tool / function calling
- ✓Structured (JSON) outputs
- ✓Native web search
Pricing
Pros
- +Large 1,000,000-token context window, bigger than most models listed here
- +Built-in reasoning (chain-of-thought) mode for harder problems
- +Accepts images as input (vision-capable)
- +Supports tool / function calling for agent-style workflows
Cons
- −Above-average API pricing ($2 per 1M input tokens)
Who should use Sakana: Fugu Max
- →Anyone looking for a chatbots & llms tool from Sakana AI.
- →Teams and individuals focused on research and writing.
- →People who value large 1,000,000-token context window, bigger than most models listed here.
- →Workflows that need a 1,000,000 tokens context window.
Who should look elsewhere
- →Anyone who needs a free tier — this tool is paid only.
- →Those for whom above-average api pricing ($2 per 1m input tokens) is a dealbreaker.
Best for
10 Best Sakana: Fugu Max Alternatives in 2026
Sakana: Fugu Max is a strong chatbots & llms tool, but it is not the only option. Whether you are after a lower price, different features or a better fit for your workflow, here are the 10 best alternatives to Sakana: Fugu Max, ranked and compared.
Anthropic
Claude is Anthropic's family of AI assistants, known for long-context reasoning, careful writing and strong coding…
OpenAI
ChatGPT is OpenAI's flagship conversational AI, powering hundreds of millions of weekly users across web, mobile and…
Google DeepMind
Gemini is Google's natively multimodal model family, deeply integrated across Search, Workspace, Android and the Pixel…
~openai
This model always redirects to the latest model in the OpenAI GPT Astra family.
~openai
This model always redirects to the latest model in the OpenAI GPT Sol family.
~openai
This model always redirects to the latest model in the OpenAI GPT Terra family.
~openai
This model always redirects to the latest model in the OpenAI GPT Luna family.
Sakana AI
Fugu Ultra v2 is the higher-performance model in Sakana AI's Fugu family.
DeepSeek
DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal…
OpenAI
GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work. It is suited for advanced analysis, software…
Sakana: Fugu Max vs top alternatives
A side-by-side look at how Sakana: Fugu Max stacks up against its closest rivals.
| Feature | Sakana: Fugu MaxSakana AI | ClaudeAnthropic | ChatGPTOpenAI | GeminiGoogle DeepMind |
|---|---|---|---|---|
| Quality score | 9.2 / 10 | 9.6 / 10 | 9.5 / 10 | 9.2 / 10 |
| Starting price | $2.00/1M tokens | $20/mo | $20/mo | $20/mo |
| Free tier | No | Yes — Free tier available | Yes — Free tier available | Yes — Free tier available |
| API input price | $2 / 1M tokens | $5 / 1M tokens | $5 / 1M tokens | $0.375 / 1M tokens |
| API output price | $6 / 1M tokens | $25 / 1M tokens | $25 / 1M tokens | $1.875 / 1M tokens |
| Speed | — | Fast | Fast | Fast |
| Context window | 1,000,000 tokens | 200K tokens | 128K tokens | 1M-2M tokens |
| Categories | Chatbots & LLMs | Chatbots & LLMs, Coding, Writing | Chatbots & LLMs, Coding, Writing | Chatbots & LLMs, Coding, Writing |
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Frequently asked questions
Q. Is Sakana: Fugu Max free?
No — Sakana: Fugu Max is a paid tool, starting at $2.00/1M tokens.
Q. How much does Sakana: Fugu Max cost?
Sakana: Fugu Max starts at $2.00/1M tokens. API usage is around $2 per 1M input tokens and $6 per 1M output tokens.
Q. What is Sakana: Fugu Max best for?
Sakana: Fugu Max is best suited to research and writing, within the chatbots & llms category.
Q. What are the best Sakana: Fugu Max alternatives?
Popular alternatives to Sakana: Fugu Max include Claude, ChatGPT, Gemini and OpenAI GPT Astra Latest. Each trades off price, quality and ecosystem differently.
Q. Is there a free alternative to Sakana: Fugu Max?
Yes. Claude, ChatGPT, Gemini offer a free tier, making them good starting points if you want to avoid an upfront subscription.
Q. Why switch from Sakana: Fugu Max?
Common reasons include pricing, specific feature gaps (Above-average API pricing ($2 per 1M input tokens)), data-privacy requirements, or simply wanting a tool that fits your stack better.
How we rate AI tools
Our quality score weighs capability on real tasks, breadth of features and integrations, pricing and value, and how actively the tool is maintained. Scores are editorial guidance, not benchmarks — always trial a tool on your own workflow before committing. Pricing and features change frequently, so verify current details on the official site.
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