Fugu Ultra vs Kimi K3
Detailed technical comparison between Fugu Ultra (Sakana AI) and Kimi K3 (Moonshot AI). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.
Comparison Snapshot
Kimi K3
1,048,576 tokensTie
Equal CapabilityTie
Equal SpeedKimi K3
$3.00 / MTokFugu Ultra
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...
Kimi K3
Kimi K3 is a 2.8T parameter open-weight multimodal reasoning model from Moonshot AI. It is suited for complex coding, knowledge work, and long-horizon agentic workflows, and is particularly strong at...
Technical Specifications
🏆 = Superior Spec| Specification | Fugu Ultra | Kimi K3 |
|---|---|---|
| Provider | Sakana AI | Moonshot AI |
| Context Window | 1,000,000 tokens | 1,048,576 tokens🏆 |
| Agent Suitability | Not yet benchmarked | Not yet benchmarked |
| Time to First Token (TTFT) | No public TTFT data | No public TTFT data |
| Deployment Model | managed api | managed api |
| Production Stability | Beta Access (est.) | Beta Access (est.) |
| API Available | Yes | Yes |
| Released Date | 2026-06-24 | 2026-07-16 |
API Pricing Comparison
Input Price per Million Tokens
Fugu Ultra
$5.00
Kimi K3
$3.00
Output Price per Million Tokens
Fugu Ultra
$30.00
Kimi K3
$15.00
💡 Cost Ratio: Kimi K3 is 1.7x cheaper per input token than Fugu Ultra.
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Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.
Benchmark Performance Metrics
Standardized Scores (0–100%)Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.
Fugu Ultra Quirks & Gotchas
No developer gotchas reported.
Kimi K3 Quirks & Gotchas
No developer gotchas reported.
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