Fugu Ultra
sakana/fugu-ultra
multi-agent orchestration across frontier models.
cmd --model sakana/fugu-ultra
Intelligence index
not yet scored
Output speed
not yet scored
Input
$5 /M
Output
$30 /M
Cache read
$0.50 /M
Agent-loop cost
$1.85 /M in
Context window
1M tokens
Released
—
Modalities
→
vs. the lineup
Fugu Ultra beside its stablemates and nearest rivals. The ◆ marks the best value in each column across every row shown.
pin a rival:
| Model | Intelligence | Coding | Speed | Input $/M | Output $/M | Blended $/M | Context |
|---|---|---|---|---|---|---|---|
| Claude Opus 5 | 63.1◆ | 78◆ | 52.6◆ | $5◆ | $25◆ | $10◆ | 1M◆ |
| Step 3.7 Flash | 30.9◆ | 39.6◆ | 391.3◆ | $0.20◆ | $1.15◆ | $0.44◆ | 256K◆ |
| Claude Haiku 4.5 | 24.1◆ | —◆ | 96.3◆ | $1◆ | $5◆ | $2◆ | 200K◆ |
| Fugu Ultra ◆ | —◆ | —◆ | —◆ | $5◆ | $30◆ | $11.25◆ | 1M◆ |
| DeepSeek V4 Pro (latest)pinned | 45.3◆ | 59.4◆ | 63.3◆ | $0.66◆ | $1.98◆ | $0.99◆ | 1M◆ |
| DeepSeek V4 Flash (latest)pinned | 52◆ | 69.1◆ | 115.9◆ | $0.22◆ | $0.66◆ | $0.33◆ | 1M◆ |
usage calculator
How far a month of credits goes on Fugu Ultra.
Fugu Ultra runs on Max and up — from $100/mo.
Input tokensfresh prompt
800Output tokensmodel reply
180Cache read tokensre-read context
50Kcost / request $0.034 · in $5 · out $30 · cache $0.50 per M
fresh input 12%output 16%cache reads 73%
Requests / 30 days
2.9K
$100 credits ÷ $0.034 per request
~581 quick fixes~116 bug fixes~19 feature PRs
what real work costs
Real coding tasks priced end to end on Fugu Ultra, from a quick lookup to a full-repo agent run.
One agent task
$0.65
180K in at 75% cache hit, 12K out
What you pay
$3.40 /M
all-in across every token that task touched
Sticker input
$5 /M
cache reads bill at $0.50 /M instead
| Task | Tokens in · out | Fugu Ultra | Claude Opus 5 | Claude Haiku 4.5 |
|---|---|---|---|---|
| Quick lookup / one-liner | 8K · 1K | $0.04 | $0.03 | $0.0065 |
| Review a 500-line PR | 60K · 4K | $0.23 | $0.21 | $0.04 |
| Fix a bug (agent loop) | 180K · 12K | $0.65 | $0.59 | $0.12 |
| Refactor a module | 320K · 20K | $1.16 | $1.06 | $0.21 |
| Full-repo agent run | 900K · 45K | $2.69 | $2.47 | $0.49 |
frequently asked
What is Fugu Ultra best for?
Fugu Ultra is the higher-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 tasks across a swappable pool of underlying models and to recursively call instances of itself. Fugu Ultra prioritizes answer quality on complex, multi-step reasoning, coding, and agentic workflows. It supports configurable reasoning effort, tool calling, and built-in web search. Orchestration tokens consumed by the system are billed as standard input/output tokens.
How much does Fugu Ultra cost?
$5/M input and $30/M output, cache reads $0.50/M. In an agent loop most input is cache-read, so the effective input rate is about $1.85/M.Which plan do I need?
Available on Max and above.
How do I switch to it?
Run
cmd --model sakana/fugu-ultra, or type /model in a session and pick it. You can switch mid-session without losing context.Ship code that matches your taste
Command Code is the AI coding agent that continuously learns your taste. Start for $1.
Benchmarks from Artificial Analysis (v4.1)commandcode.ai/models/fugu-ultra