AI Models · Open-Source vs Paid

LFM2.5-2.6B Open vs SASakana Namazu Paid

LFM2.5-2.6B vs Sakana Namazu compared — price per token, context window, multimodality, openness and which to choose. Can the open-source model replace the paid one? Full 2026 breakdown.

Prices & specs refreshed from live data · olud.ai

Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.

LFM2.5-2.6BOpenLiquid
$0.35 /M input
$0.5 /M outputNo per-token fees if you self-host
TypeOpen-weight
Context window128K tokens
MultimodalNo
Self-hostYes
SASakana NamazuPaidSakana AI
$0.95 /M input
$4 /M outputManaged API (no infra to run)
TypeProprietary
Context window262K tokens
MultimodalYes
Self-hostNo
Choose LFM2.5-2.6B if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose Sakana Namazu if you want frontier capability through a managed API with zero infrastructure to run.

LFM2.5-2.6B vs Sakana Namazu specs

SpecLFM2.5-2.6BSakana NamazuWinner
MakerLiquidSakana AI–
TypeOpen-weightProprietaryLFM2.5-2.6B
Context window128K tokens262K tokensSASakana Namazu
Input price$0.35/M · free self-host$0.95/MLFM2.5-2.6B
Output price$0.5/M · free self-host$4/MLFM2.5-2.6B
Vision / multimodalNoYesSASakana Namazu
Tool / function callingYesYes= Tie
Self-hostableYesNo (API only)LFM2.5-2.6B
LicenseOpen weightsProprietaryLFM2.5-2.6B

Price gap & when to choose each

8.0×cheaper per output token

LFM2.5-2.6B is ~8.0× cheaper than Sakana Namazu on output tokens ($0.5 vs $4 per M tokens).

Choose LFM2.5-2.6B if…
  • You want to self-host or run on your cloud
  • You prioritize data privacy & control
  • You want the lowest operating costs
  • You are building open or reproducible AI
SAChoose Sakana Namazu if…
  • You want frontier performance through a managed API
  • You need the longer 262K context window
  • You value reliability & ecosystem
  • You don't want to manage infrastructure

Feature comparison

CapabilityLFM2.5-2.6BSakana Namazu
Open weights (downloadable)✓✗
Self-hostable✓✗
Runs fully offline✓✗
Vision / multimodal✗✓
Tool / function calling✓✓
1M+ context window✗✗

Benchmarks: LFM2.5-2.6B vs Sakana Namazu

Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).

LFM2.5-2.6B
Sakana Namazu
Intelligence index
8.4
–
Coding index
7.7
–
GPQA
55.8%
–
Humanity's Last Exam
6.2%
–
Long Context Reasoning
5.7%
–
SciCode
14.4%
–
τ-Bench Banking
7.2%
–
Terminal-Bench
4.5%
–
Speed
0 tok/s
–
Latency
0s
–

Benchmark data by Artificial Analysis.

How LFM2.5-2.6B and Sakana Namazu score

🏆 Best value & openness: LFM2.5-2.6B (4.4 vs 3.1 / 5)
CriterionLFM2.5-2.6BSakana Namazu
Cost-efficiency5.04.0
Context window3.54.0
Openness5.01.5
Self-hosting5.01.0
Multimodality3.55.0

Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.

What each model is

LFM2.5-2.6B Open

Liquid · Open-weight

LFM2.5-2.6B is a compact reasoning model from Liquid AI. It is suited for agent workflows, data extraction, RAG, and long-context processing. Liquid advises against using it for agentic coding or...

Sakana Namazu Paid

Sakana AI · Proprietary

Sakana Namazu is a Japanese-specialized reasoning model from Sakana AI, based on Kimi K2.6 with additional training for Japanese language and business contexts. It is suited for Japanese instruction following,...

Other models in these families

These variants are tracked but not compared here — one page per family keeps the comparison readable.

Other variants tracked
LFM2.5-2.6B (free)LFM2.5-24B-A2B

Frequently asked questions

Is LFM2.5-2.6B as good as Sakana Namazu?

LFM2.5-2.6B is open-weight and competitive on many tasks, but Sakana Namazu may still lead on the hardest reasoning and agentic work. The gap keeps narrowing — benchmark both on your actual use case before deciding.

Can I run LFM2.5-2.6B locally?

Yes. LFM2.5-2.6B has open weights, so you can self-host it on your own GPUs or run it via a low-cost API. Sakana Namazu is API-only and cannot be self-hosted.

How much cheaper is LFM2.5-2.6B?

LFM2.5-2.6B costs $0.5/M output vs $4/M for Sakana Namazu — roughly 8x cheaper via API, and free if you self-host.

LFM2.5-2.6B vs Sakana Namazu — which should I pick in 2026?

Choose LFM2.5-2.6B if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose Sakana Namazu if you want frontier capability through a managed API with zero infrastructure to run.

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