AI Models · Open-Source vs Paid

Step 5 Preview Open vs ELGlimpse Paid

Step 5 Preview vs Glimpse 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.

Step 5 PreviewOpenStepfun
$1 /M input
$2.7 /M outputNo per-token fees if you self-host
TypeOpen-weight
Context window1M tokens
MultimodalYes
Self-hostYes
ELGlimpsePaidElorian
$0.6 /M input
$3 /M outputManaged API (no infra to run)
TypeProprietary
Context window262K tokens
MultimodalYes
Self-hostNo
Choose Step 5 Preview 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 Glimpse if you want frontier capability through a managed API with zero infrastructure to run.

Step 5 Preview vs Glimpse specs

SpecStep 5 PreviewGlimpseWinner
MakerStepfunElorian–
TypeOpen-weightProprietaryStep 5 Preview
Context window1M tokens262K tokensStep 5 Preview
Input price$1/M · free self-host$0.6/MELGlimpse
Output price$2.7/M · free self-host$3/MStep 5 Preview
Vision / multimodalYesYes= Tie
Tool / function callingYesYes= Tie
Self-hostableYesNo (API only)Step 5 Preview
LicenseOpen weightsProprietaryStep 5 Preview

Price gap & when to choose each

Choose Step 5 Preview if…
  • You want to self-host or run on your cloud
  • You need the longer 1M context window
  • You prioritize data privacy & control
  • You want the lowest operating costs
  • You are building open or reproducible AI
ELChoose Glimpse if…
  • You want frontier performance through a managed API
  • You value reliability & ecosystem
  • You don't want to manage infrastructure

Feature comparison

CapabilityStep 5 PreviewGlimpse
Open weights (downloadable)✓✗
Self-hostable✓✗
Runs fully offline✓✗
Vision / multimodal✓✓
Tool / function calling✓✓
1M+ context window✓✗

Benchmarks: Step 5 Preview vs Glimpse

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

Step 5 Preview
Glimpse
Intelligence index
43.7
–
Humanity's Last Exam
46.5%
–
Long Context Reasoning
88.3%
–
SciCode
58.9%
–
Speed
201.5 tok/s
–
Latency
0.87s
–
Intelligence per $
30.7
–

Benchmark data by Artificial Analysis.

How Step 5 Preview and Glimpse score

🏆 Best value & openness: Step 5 Preview (4.9 vs 3.1 / 5)
CriterionStep 5 PreviewGlimpse
Cost-efficiency4.54.0
Context window5.04.0
Openness5.01.5
Self-hosting5.01.0
Multimodality5.05.0

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

Step 5 Preview Open

Stepfun · Open-weight

Step 5 Preview is StepFun's flagship model for agentic work, built on a sparse Mixture-of-Experts architecture (27B active / 600B total parameters). It performs strongly in software engineering and professional...

Glimpse Paid

Elorian · Proprietary

Glimpse is a multimodal visual reasoning model from Elorian, built for visual understanding and complex visual reasoning in the physical world. It reasons directly over images and video rather than...

Other models in these families

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

Other variants tracked
Step 3.7 FlashStep 3.5 Flash

Frequently asked questions

Is Step 5 Preview as good as Glimpse?

Step 5 Preview is open-weight and competitive on many tasks, but Glimpse 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 Step 5 Preview locally?

Yes. Step 5 Preview has open weights, so you can self-host it on your own GPUs or run it via a low-cost API. Glimpse is API-only and cannot be self-hosted.

Step 5 Preview vs Glimpse — which should I pick in 2026?

Choose Step 5 Preview 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 Glimpse if you want frontier capability through a managed API with zero infrastructure to run.

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