Updated October 7, 2026. Rank says Grok 4.5 is ahead. Price, access, and your workload can each overturn that. Public scores include evidence status and uncertainty.
Both of these models will change. Get the price, version and retirement notices for the pair, each with its source. Follow model changes
Grok 4.5 has the higher public point estimate, 63.97 versus 46.68. Their conditional score ranges overlap. These ranges do not establish rank confidence. 8 results are shared. Category rows resting on Estimated evidence or 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.
Code generation, repair, and software-engineering tasks
Grok 4.5
Grok 4.5 has the higher public coding point estimate, 57.7 to 23.4, with Supported evidence for both models. The conditional ranges do not establish rank confidence.
Tool use, computer use, and multi-step task completion
Grok 4.5
Grok 4.5 has the higher public agentic point estimate, 57.6 to 26.9, with Supported evidence for both models. The conditional ranges do not establish rank confidence.
Prompts that approach the documented context limit
Nemotron 3 Ultra
Nemotron 3 Ultra has the larger documented context window.
1K fresh input + 500 output tokens
Not enough matched evidence
A complete comparable API-rate estimate is not available for both models.
200K cached + 20K fresh input + 10K output tokens
Not enough matched evidence
A complete comparable API-rate estimate is not available for both models.
50K fresh input + 3K output tokens
Not enough matched evidence
A complete comparable API-rate estimate is not available for both models.
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.
Like-for-like · BenchAlign v5.8
Grok 4.5 has the higher coding point estimate. Conditional score ranges do not establish rank confidence.
Coding scores combine specific tasks and setups. Match the editor, harness, and effort to your workflow.
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.
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.
SWE MultilingualCoding
Normalized gap 10.3MMLU-Pro (Vals)Knowledge
Normalized gap 3.4LiveCodeBench (Vals)Coding
Normalized gap 1.4Each row shows the public-lane category score for both models: the BenchAlign v5.8 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.
| Category | Grok 4.5 | Nemotron 3 Ultra | Basis | Reading |
|---|---|---|---|---|
| Agentic | 57.6Supported · #29/122 | 26.9Supported · #93/122 | Like-for-likeBenchAlign v5.8 lane · 4 vs 6 public rows | Grok 4.5 leads |
| Coding | 57.7Supported · #27/146 | 23.4Supported · #110/146 | Like-for-likeBenchAlign v5.8 lane · 8 vs 7 public rows | Grok 4.5 leads |
| Reasoning | 50.4#28/28 | 51.8#27/28 | Directional onlyProvisional lane · 2 vs 1 weighted rows | Directional only |
| Knowledge | 67.0Supported · #19/174 | 48.9Estimated · #72/174 | Directional onlyBenchAlign v5.8 lane · 2 vs 7 public rows | Directional only |
| Multimodal | 79.5Unranked · 1 rankable row | Not ranked | Not comparableProvisional lane · 0 vs 0 weighted rows | Not comparable |
| Multilingual | Not ranked | 89.2#7/16 | Not comparableProvisional lane · 0 vs 1 weighted rows | Not comparable |
| Instruction following | Not ranked | 87.4#28/125 | Not comparableProvisional lane · 0 vs 1 weighted rows | Not comparable |
| Math | Not ranked | Not ranked | Not comparableProvisional lane · 0 vs 0 weighted rows | Not comparable |
Ranks count the models scored in each category’s lane, so the agentic, coding, and knowledge denominators (BenchAlign v5.8) 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.
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
Nemotron 3 Ultra has no comparable published API token rate.
50K fresh input + 3K output tokens
Nemotron 3 Ultra has no comparable published API token rate.
200K cached + 20K fresh input + 10K output tokens
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.
Grok 4.5
500K
Nemotron 3 Ultra
1M
Grok 4.5
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.
Grok 4.5
$0.3 per 1M cached input tokens
Nemotron 3 Ultra
No comparable hosted API rate
Grok 4.5
Not sourced
Nemotron 3 Ultra
Not sourced
Grok 4.5
Not sourced
Nemotron 3 Ultra
Not sourced
Grok 4.5
Not sourced
Nemotron 3 Ultra
Not sourced
Grok 4.5
Reasoning
Nemotron 3 Ultra
Reasoning
Grok 4.5
Proprietary
Nemotron 3 Ultra
Open Weight
Grok 4.5
Proprietary
Nemotron 3 Ultra
Open Weight
Grok 4.5
2026-07-08
Nemotron 3 Ultra
2026-06-04
Grok 4.5 has the higher public point estimate, 63.97 versus 46.68. Their conditional score ranges overlap. These ranges do not establish rank confidence. The page therefore keeps the decision tied to the specific documented workload.
Grok 4.5 has the higher public coding point estimate, 57.7 to 23.4, with Supported evidence for both models. The conditional ranges do not establish rank confidence.
Grok 4.5 has the higher public agentic tasks point estimate, 57.6 to 26.9, with Supported evidence for both models. The conditional ranges do not establish rank confidence.
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 500K.
The full public result ledger is available for audit without forcing a wide desktop table onto a phone.
Terminal-Bench 3.0
Not directly comparable
Terminal-Bench 2.1
Grok 4.5 leads this result
deepSwe
Not directly comparable
Terminal-Bench 2.1 (Vals)
Grok 4.5 leads this result
PinchBench
Not directly comparable
BrowseComp
Not directly comparable
τ³-bench results
Not directly comparable
HLE w/ tools
Not directly comparable
SWE-bench Pro
Not directly comparable
SWE Multilingual
Grok 4.5 leads this result
Terminal-Bench 2.1
Grok 4.5 leads this result
CursorBench 3.2
Not directly comparable
VulcanBench v3
Not directly comparable
LiveCodeBench (Vals)
Grok 4.5 leads this result
SWE-bench (Vals)
Grok 4.5 leads this result
PostTrainBench v1.1
Not directly comparable
SWE-bench Verified
Not directly comparable
LiveCodeBench v6
Not directly comparable
SciCode
Not directly comparable
ARC-AGI-2
Not directly comparable
ARC-AGI-3
Not directly comparable
ARC-AGI-1
Not directly comparable
CritPt
Not directly comparable
LongBench v2
Not directly comparable
GPQA Diamond (Vals)
Grok 4.5 leads this result
MMLU-Pro (Vals)
Grok 4.5 leads this result
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
IFBench
Not directly comparable
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Last updated October 7, 2026
