AI Models · Open-Source vs Paid

GLM 5.3 Open vs SAFugu Max Paid

GLM 5.3 vs Fugu Max 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.

GLM 5.3OpenZ.AI
$0.07 /M input
$7 /M outputNo per-token fees if you self-host
TypeOpen-weight
Context window1M tokens
MultimodalNo
Self-hostYes
SAFugu MaxPaidSakana AI
$2 /M input
$6 /M outputManaged API (no infra to run)
TypeProprietary
Context window1M tokens
MultimodalYes
Self-hostNo
Choose GLM 5.3 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 Fugu Max if you want frontier capability through a managed API with zero infrastructure to run.

GLM 5.3 vs Fugu Max specs

SpecGLM 5.3Fugu MaxWinner
MakerZ.AISakana AI–
TypeOpen-weightProprietaryGLM 5.3
Context window1M tokens1M tokensGLM 5.3
Input price$0.07/M · free self-host$2/MGLM 5.3
Output price$7/M · free self-host$6/MSAFugu Max
Vision / multimodalNoYesSAFugu Max
Tool / function callingYesYes= Tie
Self-hostableYesNo (API only)GLM 5.3
LicenseMITProprietaryGLM 5.3

Price gap & when to choose each

Choose GLM 5.3 if…
  • You want to self-host or run on your cloud
  • You need the longer 1M context window
  • You prioritize data privacy & control
  • You are building open or reproducible AI
SAChoose Fugu Max if…
  • You want frontier performance through a managed API
  • You want the lower output price
  • You value reliability & ecosystem
  • You don't want to manage infrastructure

Feature comparison

CapabilityGLM 5.3Fugu Max
Open weights (downloadable)✓✗
Self-hostable✓✗
Runs fully offline✓✗
Vision / multimodal✗✓
Tool / function calling✓✓
1M+ context window✓✓

Benchmarks: GLM 5.3 vs Fugu Max

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

GLM 5.3
Fugu Max
Intelligence index
44.8
–
Coding index
74.8
–
GPQA
91.7%
–
Humanity's Last Exam
42.3%
–
Long Context Reasoning
79.7%
–
SciCode
59%
–
τ-Bench Banking
50.3%
–
Terminal-Bench
83.9%
–
Speed
74 tok/s
–
Latency
2.88s
–
Intelligence per $
20.8
–

Benchmark data by Artificial Analysis.

How GLM 5.3 and Fugu Max score

🏆 Best value & openness: GLM 5.3 (4.5 vs 3.3 / 5)
CriterionGLM 5.3Fugu Max
Cost-efficiency4.04.0
Context window5.05.0
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

GLM 5.3 Open

Z.AI · Open-weight

GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks. It supports text input and output with a 1M-token context window, and improves...

Fugu Max Paid

Sakana AI · Proprietary

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...

Other models in these families

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

Other variants tracked
GLM 5.3 (batch)GLM 5.3 FlashGLM 5.3 Flash (batch)GLM 5.2GLM 5GLM 5 TurboGLM 5.1GLM 5V TurboGLM 4.7GLM 4.6GLM 4.7 FlashGLM 4.5GLM 4.5 AirGLM 4.6VGLM 4.5VGLM 5.3 PrimeGLM 5.3 FlashX

Frequently asked questions

Is GLM 5.3 as good as Fugu Max?

GLM 5.3 is open-weight and competitive on many tasks, but Fugu Max 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 GLM 5.3 locally?

Yes. GLM 5.3 has open weights, so you can self-host it on your own GPUs or run it via a low-cost API. Fugu Max is API-only and cannot be self-hosted.

GLM 5.3 vs Fugu Max — which should I pick in 2026?

Choose GLM 5.3 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 Fugu Max if you want frontier capability through a managed API with zero infrastructure to run.

People also compare

Explore more open-source AI

Browse the full open-source model leaderboard, thousands of tools and live benchmarks — all in one place.

Open the leaderboard →