Instruction following
Directional only- LFM2.5-8B-A1B
- 68.8
- Nemotron 3 Ultra
- 81.7
- Weighted basis
- 2 vs 1 rows
- Reading
- Directional only
Five or fewer confirmed AI changes, with original sources, on mornings when something changed.A free source-linked morning brief.
Start the free Radar BriefUpdated August 30, 2026. Public scores include evidence status and uncertainty. They are not guarantees for a specific workload.
Decision reading
Nemotron 3 Ultra has the higher public score estimate, 46.32 versus 41.82, but the 90% score intervals overlap. Treat that as a lead, not a settled winner.
1 results are shared. Category rows based on different benchmark sets are marked directional and do not name a winner.
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.
Prompts that approach the documented context limit
Nemotron 3 Ultra
Nemotron 3 Ultra has the larger documented context window.
Confidence: documented
Code generation, repair, and software-engineering tasks
Not enough matched evidence
No shared weighted benchmark basis supports a winner.
Confidence: limited
Tool use, computer use, and multi-step task completion
Not enough matched evidence
No shared weighted benchmark basis supports a winner.
Confidence: limited
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
200K cached + 20K fresh input + 10K output tokens
Not enough matched evidence
The page does not recommend a cost winner because at least one model cannot fit the stated workload in one request. LFM2.5-8B-A1B does not fit this workload in one request. LFM2.5-8B-A1B has no comparable published API token rate. Nemotron 3 Ultra has no comparable published API token rate.
Confidence: listed-rates
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
Shared results can support a head-to-head reading. Results present for only one model describe coverage, not superiority.
1 category uses different evidence sets. Those rows remain visible for coverage context but do not name a winner.
Each row states whether both averages use the same weighted benchmark set. Directional and not-comparable rows remain visible, but they never receive a winner in this template.
| Category | LFM2.5-8B-A1B | Nemotron 3 Ultra | Weighted basis | Reading |
|---|---|---|---|---|
| Instruction following | 68.8 | 81.7 | Directional only2 vs 1 rows | Directional only |
| Agentic | Not measured | 51.3 | Not comparable0 vs 2 rows | Not comparable |
| Coding | Not measured | 58.3 | Not comparable0 vs 2 rows | Not comparable |
| Reasoning | Not measured | 61.9 | Not comparable0 vs 1 rows | Not comparable |
| Knowledge | Not measured | 53.8 | Not comparable0 vs 3 rows | Not comparable |
| Math | 50.0 | Not measured | Not comparable1 vs 0 rows | Not comparable |
| Multilingual | Not measured | 83.0 | Not comparable0 vs 1 rows | Not comparable |
| Multimodal | Not measured | Not measured | Not comparable0 vs 0 rows | Not comparable |
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.
IFBench
Instruction following
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.
1K fresh input + 500 output tokens
LFM2.5-8B-A1B has no comparable published API token rate. Nemotron 3 Ultra has no comparable published API token rate.
50K fresh input + 3K output tokens
LFM2.5-8B-A1B has no comparable published API token rate. Nemotron 3 Ultra has no comparable published API token rate.
200K cached + 20K fresh input + 10K output tokens
LFM2.5-8B-A1B does not fit this workload in one request. LFM2.5-8B-A1B has no comparable published API token rate. Nemotron 3 Ultra has no comparable published API token rate.
Sourced differences are shown directly. Missing facts stay explicit instead of being inferred from a model name or family.
Maximum documented context; output-token limits may be lower.
LFM2.5-8B-A1B
128K
Nemotron 3 Ultra
1M
LFM2.5-8B-A1B
Not sourced
Nemotron 3 Ultra
Not sourced
A missing cached-input rate falls back to the listed input rate only in the stated workload estimate.
LFM2.5-8B-A1B
No comparable hosted API rate
Nemotron 3 Ultra
No comparable hosted API rate
LFM2.5-8B-A1B
Not sourced
Nemotron 3 Ultra
Not sourced
LFM2.5-8B-A1B
Not sourced
Nemotron 3 Ultra
Not sourced
LFM2.5-8B-A1B
Not sourced
Nemotron 3 Ultra
Not sourced
LFM2.5-8B-A1B
Reasoning
Nemotron 3 Ultra
Reasoning
LFM2.5-8B-A1B
Open Weight
Nemotron 3 Ultra
Open Weight
LFM2.5-8B-A1B
Open Weight
Nemotron 3 Ultra
Open Weight
LFM2.5-8B-A1B
2026-05-28
Nemotron 3 Ultra
2026-06-04
Run the same representative tasks against both endpoints before changing production traffic.
The full public result ledger is available for audit without forcing a wide desktop table onto a phone.
BFCL v4
Not directly comparable
τ²-bench results
Not directly comparable
Terminal-Bench 2.0
Not directly comparable
PinchBench
Not directly comparable
BrowseComp
Not directly comparable
τ³-bench results
Not directly comparable
HLE w/ tools
Not directly comparable
SWE-bench Verified
Not directly comparable
SWE Multilingual
Not directly comparable
LiveCodeBench v6
Not directly comparable
SciCode
Not directly comparable
Terminal-Bench 2.0
Not directly comparable
GPQA
Not directly comparable
GPQA-D
Not directly comparable
HLE
Not directly comparable
HLE w/o tools
Not directly comparable
MMLU-Pro
Not directly comparable
MMLU-ProX
Not directly comparable
Nemotron 3 Ultra has the higher public score estimate, 46.32 versus 41.82, but the 90% score intervals overlap. The higher estimate is not a decisive winner because the uncertainty ranges overlap.
The published evidence does not provide a shared weighted coding basis for both models, so BenchLM does not name a coding winner.
The published evidence does not provide a shared weighted agentic tasks basis for both models, so BenchLM does not name a agentic tasks winner.
Both models do not have comparable published API token rates, so this page does not name a universal price winner.
Nemotron 3 Ultra has the larger documented context window: 1M, compared with 128K.
Last updated August 30, 2026
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