API cost decision in 10 seconds

Fugu Ultra vs Kimi K2.7 Code (free)

Pick Kimi K2.7 Code (free) for lower cost; pick Fugu Ultra only if the larger context window matters more.

Page updated: 2026-06-24T05:07:28Z Data confirmed: 2026-08-23T13:07:49Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Kimi K2.7 Code (free) for lower cost; pick Fugu Ultra only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Kimi K2.7 Code (free) is estimated at $0 vs $20 for Fugu Ultra, saving $20 (100% lower).

Cost-first pickKimi K2.7 Code (free)

Context-first pickFugu Ultra

Sample savings$20100%

10x traffic gap$200

Fugu Ultra has more context, but Kimi K2.7 Code (free) saves $20 on the standard workload. At 10x that traffic, the same price gap is about $200. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Kimi K2.7 Code (free) stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shape	Token mix	Better pick	Fugu Ultra	Kimi K2.7 Code (free)
Input-heavy / RAG	5M input + 500K output	Kimi K2.7 Code (free)	$40	$0
Balanced workload	1M input + 1M output	Kimi K2.7 Code (free)	$35	$0
Output-heavy chatbot	1M input + 5M output	Kimi K2.7 Code (free)	$155	$0

Cheaper input Kimi K2.7 Code (free) $5 vs $0 / 1M

Kimi K2.7 Code (free) is free for input tokens while Fugu Ultra costs $5 per 1M tokens.

Cheaper output Kimi K2.7 Code (free) $30 vs $0 / 1M

Kimi K2.7 Code (free) is free for output tokens while Fugu Ultra costs $30 per 1M tokens.

Larger context Fugu Ultra 1M vs 262.14K

Fugu Ultra has 737.86K more context (3.81x larger).

Sample workload Kimi K2.7 Code (free) $20 vs $0

Kimi K2.7 Code (free) is free for the standard workload while the other model is estimated at $20.

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Fugu Ultra Calculating… Estimated API cost

Kimi K2.7 Code (free) Calculating… Estimated API cost

Cheaper for this workload Calculating… Difference: calculating…

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Quick Decision

Verdict

Kimi K2.7 Code (free) has the lower input price; Kimi K2.7 Code (free) has the lower output price; Fugu Ultra offers the larger context window. For the 1M input plus 500K output sample, Kimi K2.7 Code (free) is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $20 for Fugu Ultra and $0 for Kimi K2.7 Code (free).

Best Fit

Choose Fugu Ultra when you care most about larger context window.

Choose Kimi K2.7 Code (free) when you care most about lower input-token price, and lower output-token price.

Decision Notes

On the standard 1M input plus 500K output workload, Kimi K2.7 Code (free) is estimated at $0 vs $20 for Fugu Ultra, saving $20 (100% lower).
Kimi K2.7 Code (free) is free for the standard workload while the other model is estimated at $20.
Kimi K2.7 Code (free) is free for input tokens while Fugu Ultra costs $5 per 1M tokens.
Kimi K2.7 Code (free) is free for output tokens while Fugu Ultra costs $30 per 1M tokens.
Fugu Ultra has 737.86K more context (3.81x larger).

Head-to-Head Specs

Feature	Fugu Ultra (Sakana)	Kimi K2.7 Code (free) (MoonshotAI)
Input Price prompt tokens per 1M	$5	$0
Completion Price per 1M tokens	$30	$0
Sample Workload Cost 1M input + 500K output	$20	$0
Context Window	1M	262.14K
Release Date	2026-06-24	2026-06-12

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	Kimi K2.7 Code (free)	On the standard 1M input plus 500K output workload, Kimi K2.7 Code (free) is estimated at $0 vs $20 for Fugu Ultra, saving $20 (100% lower).
High-volume input processing	Kimi K2.7 Code (free)	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	Kimi K2.7 Code (free)	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	Fugu Ultra	A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps

Sakana Namazu can replace Fugu Ultra when lower sample workload cost matters most: $2.95.

Larger context near this budget

Grok 4.20 Multi-Agent offers 2M context with $2.5 sample workload cost.
Grok 4.20 offers 2M context with $2.5 sample workload cost.
DeepSeek V4 Flash 0731 offers 1.31M context with $0.17 sample workload cost.
DeepSeek V4 Flash Latest offers 1.31M context with $0.11 sample workload cost.

Popular competitors

DeepSeek V4 Flash 0731 · DeepSeek · #1
MiMo-V2.5 · Xiaomi · #2
Hy3 · Tencent · #3
Ox Alpha · stealth · #4

Cheaper alternatives

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Larger context alternatives

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Provider catalogs

Compare models within provider hubs before choosing a final API vendor.

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Sakana catalog

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MoonshotAI catalog

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Fugu 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 K2.7 Code (free)

MoonshotAI: Kimi K2.7 Code is a coding-focused model in Moonshot AI's Kimi K2 family, built to complete end-to-end programming tasks reliably over long contexts. It uses a native multimodal mixture-of-experts...