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BenchLM

GPT-4.1 vs Nemotron 3.5 Lightning 30B A3B NVFP4

Updated September 24, 2026. Rank says GPT-4.1 is ahead. Price, access, and your workload can each overturn that. Public scores include evidence status and uncertainty.

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Decision reading

GPT-4.1 has the higher public score estimate, 39.79 versus 19.1, but the 90% score intervals overlap. Treat that as a lead, not a settled winner. 2 results are shared. Category rows resting on Estimated evidence or different benchmark sets are marked directional and do not name a winner.

Model A
OpenAI logo

OpenAI

39.79/100

Supported · Public rank #116

90% interval 24.6–55.0

Model B
NVIDIA logo

NVIDIA

19.1/100

Estimated · Public rank #186

90% interval 9.2–29.0

Shared results
2
GPT-4.1 only
5
Nemotron 3.5 Lightning 30B A3B NVFP4 only
11
Like-for-like categories
0 / 8
Supported: GPT-4.1 · Estimated: Nemotron 3.5 Lightning 30B A3B NVFP4How the comparison works

Which one for your work

Recommendations appear only when a shared evidence basis or an explicit operating constraint supports the call. Secondary and unsupported use cases stay disclosed below the initial list.

No workload recommendation clears the current evidence threshold.

Use the matched evidence, workload costs, and sourced specifications below instead of treating a point score as a universal answer.

Show secondary and unsupported calls
  • Coding work

    Code generation, repair, and software-engineering tasks

    Not enough matched evidence

    GPT-4.1 is not ranked on the public lane for coding, so no winner is named for coding.

    Confidence: limited
  • Agentic work

    Tool use, computer use, and multi-step task completion

    Not enough matched evidence

    GPT-4.1 is not ranked on the public lane for agentic, so no winner is named for agentic.

    Confidence: limited
  • Long documents

    Prompts that approach the documented context limit

    No clear pick

    The documented context windows are equal.

    Confidence: documented
  • Chat turn cost

    1K fresh input + 500 output tokens

    Not enough matched evidence

    A complete comparable API-rate estimate is not available for both models.

    Confidence: listed-rates
  • Cache-heavy agent loop cost

    200K cached + 20K fresh input + 10K output tokens

    Not enough matched evidence

    A complete comparable API-rate estimate is not available for both models.

    Confidence: rate-fallback
  • Repository review cost

    50K fresh input + 3K output tokens

    Not enough matched evidence

    A complete comparable API-rate estimate is not available for both models.

    Confidence: listed-rates

Which one for a specific job

Choose a job from the LLM Selector's task catalog to see the category row it rests on, under the same basis rules as the table below. A directional row stays directional; choosing a job never creates a winner.

The same task catalog as the LLM Selector. Each job names the evidence surface it rests on; nothing here adds a new score.

—GPT-4.111.4Nemotron 3.5 Lightning 30B A3B NVFP4

Not comparable · BenchAlign v5.7

The coding row is not comparable on the public lane: at least one model is not measured or not ranked there.

Coding scores combine specific tasks and setups. Match the editor, harness, and effort to your workflow.

Same basis rules as the category table below

What is actually comparable

Shared results can support a head-to-head reading. Results present for only one model describe coverage, not superiority.

2 categories rest on Estimated evidence or different evidence sets. Those rows remain visible for coverage context but do not name a winner.

Shape of the matched evidence

Only shared public evidence is shown. Sparse evidence stays a ruled list rather than being closed into a radar shape.

Too few matched category axes support a radar. The ruled list below shows only shared benchmark results; positions use each benchmark’s normalized display scale when available.

Bars run 0–100 on each benchmark’s normalized display scale

Category results, on a stated basis

Each row shows the public-lane category score for both models: the BenchAlign v5.7 lane for agentic, coding, and knowledge, and the weighted public rows elsewhere, with the same rank each model page reports. A row is like-for-like only when both scores rest on Supported evidence or the same weighted set. Directional and not-comparable rows remain visible, but they never receive a winner.

Knowledge

Directional only
GPT-4.1
35.5
Supported · #108/158
Nemotron 3.5 Lightning 30B A3B NVFP4
20.7
Estimated · #154/158
Basis
BenchAlign v5.7 lane · 2 vs 4 public rows
Reading
Directional only

Instruction following

Directional only
GPT-4.1
48.9
#83/124
Nemotron 3.5 Lightning 30B A3B NVFP4
68.5
#67/124
Basis
Provisional lane · 0 vs 1 weighted rows
Reading
Directional only

Agentic

Not comparable
GPT-4.1
Not ranked
Nemotron 3.5 Lightning 30B A3B NVFP4
7.3
Estimated · #104/105
Basis
BenchAlign v5.7 lane · 1 vs 4 public rows
Reading
Not comparable

Coding

Not comparable
GPT-4.1
Not ranked
Nemotron 3.5 Lightning 30B A3B NVFP4
11.4
Estimated · #135/135
Basis
BenchAlign v5.7 lane · 1 vs 4 public rows
Reading
Not comparable

Reasoning

Not comparable
GPT-4.1
69.0
Unranked · 2 rankable rows
Nemotron 3.5 Lightning 30B A3B NVFP4
55.9
Unranked · 1 rankable row
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Multimodal

Not comparable
GPT-4.1
50.3
Unranked · 1 rankable row
Nemotron 3.5 Lightning 30B A3B NVFP4
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Multilingual

Not comparable
GPT-4.1
Not ranked
Nemotron 3.5 Lightning 30B A3B NVFP4
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Math

Not comparable
GPT-4.1
28.0
Unranked · 2 rankable rows
Nemotron 3.5 Lightning 30B A3B NVFP4
Not ranked
Basis
Provisional lane · 2 vs 0 weighted rows
Reading
Not comparable

Ranks count the models scored in each category’s lane, so the agentic, coding, and knowledge denominators (BenchAlign v5.7) differ from the provisional-lane categories. Unranked scores sit on the provisional lane’s scale but never name a winner. Like-for-like rows within 0.5 points read as a practical tie.

Supported evidence per lane · bars run 0–100Methodology

What each workload costs

Three fixed token mixes turn per-token rates into comparable decisions. Each scenario states context fit and whether cached input had to fall back to the published list-input rate.

Chat turn

1K fresh input + 500 output tokens

GPT-4.1
$0.006
Fits in one request
Nemotron 3.5 Lightning 30B A3B NVFP4
Self-hosted; infrastructure cost varies
Fits in one request

Nemotron 3.5 Lightning 30B A3B NVFP4 has no comparable published API token rate.

Repository review

50K fresh input + 3K output tokens

GPT-4.1
$0.124
Fits in one request
Nemotron 3.5 Lightning 30B A3B NVFP4
Self-hosted; infrastructure cost varies
Fits in one request

Nemotron 3.5 Lightning 30B A3B NVFP4 has no comparable published API token rate.

Cache-heavy agent loop

200K cached + 20K fresh input + 10K output tokens

GPT-4.1
$0.52
Fits in one request
Cached input priced at the published list-input rate
Nemotron 3.5 Lightning 30B A3B NVFP4
Self-hosted; infrastructure cost varies
Fits in one request
Cached-input rate unavailable

GPT-4.1 has no published cached-input rate, so cached tokens use its listed input rate. Nemotron 3.5 Lightning 30B A3B NVFP4 has no comparable published API token rate.

Cached input falls back to the list input rate only where a cached rate is unpublished

Specification differences

Sourced differences are shown directly. Missing facts stay explicit instead of being inferred from a model name or family.

API model ID

GPT-4.1

Not sourced

Nemotron 3.5 Lightning 30B A3B NVFP4

Not sourced

Cached-input rate

A missing cached-input rate falls back to the listed input rate only in the stated workload estimate.

GPT-4.1

Not published

Nemotron 3.5 Lightning 30B A3B NVFP4

No comparable hosted API rate

NVIDIA Nemotron 3.5 Lightning model card

Documented inputs

GPT-4.1

Not sourced

Nemotron 3.5 Lightning 30B A3B NVFP4

Not sourced

Documented outputs

GPT-4.1

Not sourced

Nemotron 3.5 Lightning 30B A3B NVFP4

Not sourced

Provider availability

GPT-4.1

Not sourced

Nemotron 3.5 Lightning 30B A3B NVFP4

Not sourced

Reasoning profile

GPT-4.1

Non-Reasoning

Nemotron 3.5 Lightning 30B A3B NVFP4

Reasoning

Weight access

GPT-4.1

Proprietary

Nemotron 3.5 Lightning 30B A3B NVFP4

Open Weight

License

GPT-4.1

Proprietary

Nemotron 3.5 Lightning 30B A3B NVFP4

Open Weight

Release date

GPT-4.1

2025-04-14

Nemotron 3.5 Lightning 30B A3B NVFP4

2026-08-11

If you already use one of these models

Deployment change
The models list different providers, so authentication, endpoint behavior, limits, and feature support may change.
Quality signal
GPT-4.1 has the higher public score estimate, 39.79 versus 19.1, but the 90% score intervals overlap.
Workload cost
A complete comparable API-rate estimate is not available for both models.
Context tradeoff
Both models list 1M.
Run the same representative tasks against both endpoints before changing production traffic.

Questions

Which is better, GPT-4.1 or Nemotron 3.5 Lightning 30B A3B NVFP4?

GPT-4.1 has the higher public score estimate, 39.79 versus 19.1, but the 90% score intervals overlap. The higher estimate is not a decisive winner because the uncertainty ranges overlap.

Which is better for coding, GPT-4.1 or Nemotron 3.5 Lightning 30B A3B NVFP4?

GPT-4.1 is not ranked on the public lane for coding, so no winner is named for coding.

Which is better for agentic tasks, GPT-4.1 or Nemotron 3.5 Lightning 30B A3B NVFP4?

GPT-4.1 is not ranked on the public lane for agentic tasks, so no winner is named for agentic tasks.

Which costs less, GPT-4.1 or Nemotron 3.5 Lightning 30B A3B NVFP4?

Both models do not have comparable published API token rates, so this page does not name a universal price winner.

Which has the larger context window, GPT-4.1 or Nemotron 3.5 Lightning 30B A3B NVFP4?

Both models list the same context window, 1M.

Benchmark evidence

The full public result ledger is available for audit without forcing a wide desktop table onto a phone.

Browse raw public benchmark evidence18 rows

Agentic

  • Gert Labs

    GPT-4.125.65%
    Source
    Nemotron 3.5 Lightning 30B A3B NVFP4—

    Not directly comparable

  • Terminal-Bench 2.1

    GPT-4.1—
    Nemotron 3.5 Lightning 30B A3B NVFP423.5%
    Source

    Not directly comparable

  • PinchBench

    GPT-4.1—
    Nemotron 3.5 Lightning 30B A3B NVFP483.4%
    Source

    Not directly comparable

  • BrowseComp

    GPT-4.1—
    Nemotron 3.5 Lightning 30B A3B NVFP436.8%
    Source

    Not directly comparable

  • τ³-bench results

    GPT-4.1—
    Nemotron 3.5 Lightning 30B A3B NVFP49.5%
    Source

    Not directly comparable

Coding

  • SWE-bench Verified

    GPT-4.154.6%
    Source
    Nemotron 3.5 Lightning 30B A3B NVFP452.8%
    Source

    GPT-4.1 leads this result

  • SWE Multilingual

    GPT-4.1—
    Nemotron 3.5 Lightning 30B A3B NVFP436.5%
    Source

    Not directly comparable

  • Terminal-Bench 2.1

    GPT-4.1—
    Nemotron 3.5 Lightning 30B A3B NVFP423.5%
    Source

    Not directly comparable

  • SciCode

    GPT-4.1—
    Nemotron 3.5 Lightning 30B A3B NVFP431.4%
    Source

    Not directly comparable

Knowledge

  • MMLU

    GPT-4.190.2%
    Source
    Nemotron 3.5 Lightning 30B A3B NVFP4—

    Not directly comparable

  • GPQA

    GPT-4.166.3%
    Source
    Nemotron 3.5 Lightning 30B A3B NVFP475.6%
    Source

    Nemotron 3.5 Lightning 30B A3B NVFP4 leads this result

  • GPQA-D

    GPT-4.1—
    Nemotron 3.5 Lightning 30B A3B NVFP475.6%
    Source

    Not directly comparable

  • HLE w/o tools

    GPT-4.1—
    Nemotron 3.5 Lightning 30B A3B NVFP410.5%
    Source

    Not directly comparable

  • MMLU-Pro

    GPT-4.1—
    Nemotron 3.5 Lightning 30B A3B NVFP481.6%
    Source

    Not directly comparable

Instruction following

  • IFEval

    GPT-4.187.4%
    Source
    Nemotron 3.5 Lightning 30B A3B NVFP4—

    Not directly comparable

  • IFBench

    GPT-4.1—
    Nemotron 3.5 Lightning 30B A3B NVFP472.9%
    Source

    Not directly comparable

Math

  • FrontierMath v2 (Tiers 1-3)

    GPT-4.15.517%
    Source
    Nemotron 3.5 Lightning 30B A3B NVFP4—

    Not directly comparable

  • FrontierMath v2 (Tier 4)

    GPT-4.10.000%
    Source
    Nemotron 3.5 Lightning 30B A3B NVFP4—

    Not directly comparable

18 public results · 2 shared

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Last updated September 24, 2026