Agentic
Not comparable- Nemotron 3.5 Lightning 30B A3B NVFP4
- 26.1
- Estimated · #146/152
- Solar Open 2
- Not ranked
- Basis
- BenchAlign lane · 4 vs 3 public rows
- Reading
- Not comparable
NVIDIA
21.01/100
Estimated · Public rank #239
90% interval 11.1–30.9
Nemotron 3.5 Lightning 30B A3B NVFP4 vs Solar Open 2
Updated September 10, 2026. Public scores include evidence status and uncertainty. They are not guarantees for a specific workload.
Decision reading
At least one model is not scored in the current public ranking lane, so the page does not name an overall quality winner.
5 results are shared. Category rows resting on Estimated evidence or different benchmark sets are marked directional and do not name a winner.
Share or export
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
Solar Open 2 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
Solar Open 2 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: listed-rates
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
What is actually comparable
Shared results can support a head-to-head reading. Results present for only one model describe coverage, not superiority.
8 Nemotron 3.5 Lightning 30B A3B NVFP4 only
5 Shared
6 Solar Open 2 only
- Shared results
- 5
- Nemotron 3.5 Lightning 30B A3B NVFP4 only
- 8
- Solar Open 2 only
- 6
- Like-for-like categories
- 0 / 8
Category results, on a stated basis
Each row shows the public-lane category score for both models: the BenchAlign 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.
Coding
Not comparable- Nemotron 3.5 Lightning 30B A3B NVFP4
- 30.2
- Estimated · #137/151
- Solar Open 2
- Not ranked
- Basis
- BenchAlign lane · 4 vs 2 public rows
- Reading
- Not comparable
Reasoning
Not comparable- Nemotron 3.5 Lightning 30B A3B NVFP4
- 54.8
- Unranked · 1 rankable row
- Solar Open 2
- Not ranked
- Basis
- Provisional lane · 0 vs 0 weighted rows
- Reading
- Not comparable
Knowledge
Not comparable- Nemotron 3.5 Lightning 30B A3B NVFP4
- 30.2
- Estimated · #176/183
- Solar Open 2
- Not ranked
- Basis
- BenchAlign lane · 4 vs 3 public rows
- Reading
- Not comparable
Math
Not comparable- Nemotron 3.5 Lightning 30B A3B NVFP4
- Not ranked
- Solar Open 2
- Not ranked
- Basis
- Provisional lane · 0 vs 2 weighted rows
- Reading
- Not comparable
Multilingual
Not comparable- Nemotron 3.5 Lightning 30B A3B NVFP4
- Not ranked
- Solar Open 2
- Not ranked
- Basis
- Provisional lane · 0 vs 0 weighted rows
- Reading
- Not comparable
Multimodal
Not comparable- Nemotron 3.5 Lightning 30B A3B NVFP4
- Not ranked
- Solar Open 2
- Not ranked
- Basis
- Provisional lane · 0 vs 0 weighted rows
- Reading
- Not comparable
Instruction following
Not comparable- Nemotron 3.5 Lightning 30B A3B NVFP4
- 72.6
- #64/123
- Solar Open 2
- Not ranked
- Basis
- Provisional lane · 1 vs 1 weighted rows
- Reading
- Not comparable
| Category | Nemotron 3.5 Lightning 30B A3B NVFP4 | Solar Open 2 | Basis | Reading |
|---|---|---|---|---|
| Agentic | 26.1Estimated · #146/152 | Not ranked | Not comparableBenchAlign lane · 4 vs 3 public rows | Not comparable |
| Coding | 30.2Estimated · #137/151 | Not ranked | Not comparableBenchAlign lane · 4 vs 2 public rows | Not comparable |
| Reasoning | 54.8Unranked · 1 rankable row | Not ranked | Not comparableProvisional lane · 0 vs 0 weighted rows | Not comparable |
| Knowledge | 30.2Estimated · #176/183 | Not ranked | Not comparableBenchAlign lane · 4 vs 3 public rows | Not comparable |
| Math | Not ranked | Not ranked | Not comparableProvisional lane · 0 vs 2 weighted rows | Not comparable |
| Multilingual | Not ranked | Not ranked | Not comparableProvisional lane · 0 vs 0 weighted rows | Not comparable |
| Multimodal | Not ranked | Not ranked | Not comparableProvisional lane · 0 vs 0 weighted rows | Not comparable |
| Instruction following | 72.6#64/123 | Not ranked | Not comparableProvisional lane · 1 vs 1 weighted rows | Not comparable |
Ranks count the models scored in each category’s lane, so the agentic, coding, and knowledge denominators (BenchAlign) differ from the provisional-lane categories. Unranked scores sit on the lane’s scale but never name a winner. Like-for-like rows within 0.5 points read as a practical tie.
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.
HLE w/o tools
Knowledge
Nemotron 3.5 Lightning 30B A3B NVFP4: 10.5%Solar Open 2: 28.8%Normalized gap 18.3Nemotron 3.5 Lightning 30B A3B NVFP4 source Solar Open 2 sourceSWE-bench Verified
Coding
Nemotron 3.5 Lightning 30B A3B NVFP4: 52.8%Solar Open 2: 70.4%Normalized gap 17.6Nemotron 3.5 Lightning 30B A3B NVFP4 source Solar Open 2 sourceIFBench
Instruction following
Nemotron 3.5 Lightning 30B A3B NVFP4: 72.9%Solar Open 2: 80%Normalized gap 7.1Nemotron 3.5 Lightning 30B A3B NVFP4 source Solar Open 2 sourceMMLU-Pro
Knowledge
Nemotron 3.5 Lightning 30B A3B NVFP4: 81.6%Solar Open 2: 86.2%Normalized gap 4.6Nemotron 3.5 Lightning 30B A3B NVFP4 source Solar Open 2 source
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
- Nemotron 3.5 Lightning 30B A3B NVFP4
- Self-hosted; infrastructure cost varies
- Fits in one request
- Solar Open 2
- Self-hosted; infrastructure cost varies
- Fits in one request
Nemotron 3.5 Lightning 30B A3B NVFP4 has no comparable published API token rate. Solar Open 2 has no comparable published API token rate.
Repository review
50K fresh input + 3K output tokens
- Nemotron 3.5 Lightning 30B A3B NVFP4
- Self-hosted; infrastructure cost varies
- Fits in one request
- Solar Open 2
- Self-hosted; infrastructure cost varies
- Fits in one request
Nemotron 3.5 Lightning 30B A3B NVFP4 has no comparable published API token rate. Solar Open 2 has no comparable published API token rate.
Cache-heavy agent loop
200K cached + 20K fresh input + 10K output tokens
- Nemotron 3.5 Lightning 30B A3B NVFP4
- Self-hosted; infrastructure cost varies
- Fits in one request
- Cached-input rate unavailable
- Solar Open 2
- Self-hosted; infrastructure cost varies
- Fits in one request
- Cached-input rate unavailable
Nemotron 3.5 Lightning 30B A3B NVFP4 has no comparable published API token rate. Solar Open 2 has no comparable published API token rate.
Specification differences
Sourced differences are shown directly. Missing facts stay explicit instead of being inferred from a model name or family.
SpecificationNemotron 3.5 Lightning 30B A3B NVFP4Solar Open 2
Context window
Maximum documented context; output-token limits may be lower.
Nemotron 3.5 Lightning 30B A3B NVFP4
Solar Open 2
API model ID
Nemotron 3.5 Lightning 30B A3B NVFP4
Not sourced
Solar Open 2
upstage/Solar-Open2-250B
Upstage Solar Open 2 model cardCached-input rate
A missing cached-input rate falls back to the listed input rate only in the stated workload estimate.
Nemotron 3.5 Lightning 30B A3B NVFP4
No comparable hosted API rate
NVIDIA Nemotron 3.5 Lightning model cardSolar Open 2
No comparable hosted API rate
Upstage Solar Open 2 model cardDocumented inputs
Nemotron 3.5 Lightning 30B A3B NVFP4
Not sourced
Solar Open 2
Not sourced
Documented outputs
Nemotron 3.5 Lightning 30B A3B NVFP4
Not sourced
Solar Open 2
Not sourced
Provider availability
Nemotron 3.5 Lightning 30B A3B NVFP4
Not sourced
Solar Open 2
Not sourced
Reasoning profile
Nemotron 3.5 Lightning 30B A3B NVFP4
Reasoning
Solar Open 2
Reasoning
Weight access
Nemotron 3.5 Lightning 30B A3B NVFP4
Open Weight
Solar Open 2
Open Weight
License
Nemotron 3.5 Lightning 30B A3B NVFP4
Open Weight
Solar Open 2
Open Weight
Release date
Nemotron 3.5 Lightning 30B A3B NVFP4
2026-08-11
Solar Open 2
2026-07-22
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
- At least one model is not scored in the current public ranking lane, so the page does not name an overall quality winner.
- 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.
Benchmark evidence
The full public result ledger is available for audit without forcing a wide desktop table onto a phone.
Browse raw public benchmark evidence19 rows
Agentic
Terminal-Bench 2.0
Nemotron 3.5 Lightning 30B A3B NVFP423.5%SourceSolar Open 2—Not directly comparable
PinchBench
Nemotron 3.5 Lightning 30B A3B NVFP483.4%SourceSolar Open 2—Not directly comparable
BrowseComp
Nemotron 3.5 Lightning 30B A3B NVFP436.8%SourceSolar Open 2—Not directly comparable
τ³-bench results
Nemotron 3.5 Lightning 30B A3B NVFP49.5%SourceSolar Open 2—Not directly comparable
terminalBenchHard
Nemotron 3.5 Lightning 30B A3B NVFP4—Solar Open 228.3%SourceNot directly comparable
APEX-Agents
Nemotron 3.5 Lightning 30B A3B NVFP4—Solar Open 216.6%SourceNot directly comparable
MCP Atlas
Nemotron 3.5 Lightning 30B A3B NVFP4—Solar Open 258.2%SourceNot directly comparable
Coding
SWE-bench Verified
Nemotron 3.5 Lightning 30B A3B NVFP452.8%SourceSolar Open 270.4%SourceSolar Open 2 leads this result
SWE Multilingual
Nemotron 3.5 Lightning 30B A3B NVFP436.5%SourceSolar Open 2—Not directly comparable
Terminal-Bench 2.0
Nemotron 3.5 Lightning 30B A3B NVFP423.5%SourceSolar Open 2—Not directly comparable
SciCode
Nemotron 3.5 Lightning 30B A3B NVFP431.4%SourceSolar Open 2—Not directly comparable
LiveCodeBench v6
Nemotron 3.5 Lightning 30B A3B NVFP4—Solar Open 292.4%SourceNot directly comparable
Knowledge
GPQA
Nemotron 3.5 Lightning 30B A3B NVFP475.6%SourceSolar Open 2—Not directly comparable
GPQA-D
Nemotron 3.5 Lightning 30B A3B NVFP475.6%SourceSolar Open 286.3%SourceSolar Open 2 leads this result
HLE w/o tools
Nemotron 3.5 Lightning 30B A3B NVFP410.5%SourceSolar Open 228.8%SourceSolar Open 2 leads this result
MMLU-Pro
Nemotron 3.5 Lightning 30B A3B NVFP481.6%SourceSolar Open 286.2%SourceSolar Open 2 leads this result
Math
Instruction following
Frequently asked questions
Which is better, Nemotron 3.5 Lightning 30B A3B NVFP4 or Solar Open 2?
At least one model is not scored in the current public ranking lane, so the page does not name an overall quality winner. The page therefore keeps the decision tied to the specific documented workload.
Which is better for coding, Nemotron 3.5 Lightning 30B A3B NVFP4 or Solar Open 2?
Solar Open 2 is not ranked on the public lane for coding, so no winner is named for coding.
Which is better for agentic tasks, Nemotron 3.5 Lightning 30B A3B NVFP4 or Solar Open 2?
Solar Open 2 is not ranked on the public lane for agentic tasks, so no winner is named for agentic tasks.
Which costs less, Nemotron 3.5 Lightning 30B A3B NVFP4 or Solar Open 2?
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, Nemotron 3.5 Lightning 30B A3B NVFP4 or Solar Open 2?
Both models list the same context window, 1M.
Related comparisons
Last updated September 10, 2026
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