API cost decision in 10 seconds

NewNemotron 3.5 Lightning vs GLM 5.2 (free)

Pick GLM 5.2 (free) for lower cost; pick Nemotron 3.5 Lightning only if the larger context window matters more.

Page updated:  Data confirmed:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick GLM 5.2 (free) for lower cost; pick Nemotron 3.5 Lightning only if the larger context window matters more.

On the standard 1M input plus 500K output workload, GLM 5.2 (free) is estimated at $0 vs $0.18 for Nemotron 3.5 Lightning, saving $0.18 (100% lower).

Cost-first pickGLM 5.2 (free)
Context-first pickNemotron 3.5 Lightning
Sample savings$0.18100%
10x traffic gap$1.8

Nemotron 3.5 Lightning has more context, but GLM 5.2 (free) saves $0.18 on the standard workload. At 10x that traffic, the same price gap is about $1.8. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

GLM 5.2 (free) stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickNemotron 3.5 LightningGLM 5.2 (free)
Input-heavy / RAG5M input + 500K outputGLM 5.2 (free)$0.5$0
Balanced workload1M input + 1M outputGLM 5.2 (free)$0.28$0
Output-heavy chatbot1M input + 5M outputGLM 5.2 (free)$1.08$0
Cheaper input GLM 5.2 (free) $0.08 vs $0 / 1M

GLM 5.2 (free) is free for input tokens while Nemotron 3.5 Lightning costs $0.08 per 1M tokens.

Cheaper output GLM 5.2 (free) $0.2 vs $0 / 1M

GLM 5.2 (free) is free for output tokens while Nemotron 3.5 Lightning costs $0.2 per 1M tokens.

Larger context Nemotron 3.5 Lightning 262.14K vs 256K

Nemotron 3.5 Lightning has 6.14K more context (1.02x larger).

Sample workload GLM 5.2 (free) $0.18 vs $0

GLM 5.2 (free) is free for the standard workload while the other model is estimated at $0.18.

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Nemotron 3.5 Lightning Calculating… Estimated API cost
GLM 5.2 (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

GLM 5.2 (free) has the lower input price; GLM 5.2 (free) has the lower output price; Nemotron 3.5 Lightning offers the larger context window. For the 1M input plus 500K output sample, GLM 5.2 (free) is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $0.18 for Nemotron 3.5 Lightning and $0 for GLM 5.2 (free).

Best Fit

Choose Nemotron 3.5 Lightning when you care most about larger context window.

Choose GLM 5.2 (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, GLM 5.2 (free) is estimated at $0 vs $0.18 for Nemotron 3.5 Lightning, saving $0.18 (100% lower).
  • GLM 5.2 (free) is free for the standard workload while the other model is estimated at $0.18.
  • GLM 5.2 (free) is free for input tokens while Nemotron 3.5 Lightning costs $0.08 per 1M tokens.
  • GLM 5.2 (free) is free for output tokens while Nemotron 3.5 Lightning costs $0.2 per 1M tokens.
  • Nemotron 3.5 Lightning has 6.14K more context (1.02x larger).
Head-to-Head Specs
FeatureNewNemotron 3.5 Lightning
(NVIDIA)
GLM 5.2 (free)
(Z.ai)
Input Price
prompt tokens per 1M
$0.08$0
Completion Price
per 1M tokens
$0.2$0
Sample Workload Cost
1M input + 500K output
$0.18$0
Context Window262.14K256K
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionGLM 5.2 (free)On the standard 1M input plus 500K output workload, GLM 5.2 (free) is estimated at $0 vs $0.18 for Nemotron 3.5 Lightning, saving $0.18 (100% lower).
High-volume input processingGLM 5.2 (free)Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsGLM 5.2 (free)Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workNemotron 3.5 LightningA larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

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Provider catalogs

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NVIDIA catalog

Review all tracked NVIDIA models before deciding whether this matchup is the right shortlist.

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Z.ai catalog

Check other Z.ai models with comparable pricing, context, or release timing.

Open Z.ai models
Nemotron 3.5 Lightning

NVIDIA Nemotron 3.5 Lightning is an open mixture-of-experts model from NVIDIA, with 3B active parameters out of 30B total. It is suited for high-throughput agentic workloads and specialized tasks that...

GLM 5.2 (free)

GLM 5.2 is a large-scale reasoning model from Z.ai. It supports text input and output with a 1M-token context window, and is suited for long-horizon agent workflows, project-level software engineering,...