Claude Fable 5.1 vs NVIDIA Nemotron 3.5 Lightning 30B A3B
Benchmark Performance
Available Benchmarks
Technical Differences
Side-by-Side Facts
| Field | Claude Fable 5.1 | NVIDIA Nemotron 3.5 Lightning 30B-A3B |
|---|---|---|
| Developer | Anthropic | NVIDIA |
| Family | Claude 5 1 | Nvidia Nemotron 3 5 Lightning |
| Model | Claude Fable 5.1 | NVIDIA Nemotron 3.5 Lightning 30B-A3B |
| Version | Claude Fable 5.1 | NVIDIA Nemotron 3.5 Lightning 30B-A3B |
| Lifecycle | active | active |
| Released | 2026-09-01 | 2026-08-11 |
| Knowledge cutoff | 2026-06-01 | Unknown |
| Input modalities | Text, Image | Text |
| Output modalities | Text | Text |
| Context window | 1,000K | 1,049K |
| Total parameters | Unknown | 30B |
| Active parameters | Unknown | 3B |
| License | Unknown | openmdw-1.1 |
| Open weights | No | Yes |
| API available | Yes | Yes |
| Self-hostable | No | Yes |
| Provider access | Anthropic (Standard) | Fireworks Ai (Standard) |
| Capabilities | chat, generation, reasoning, tools | agents, chat, generation, reasoning, tools |
14 comparable fields · 11 material differences · Pair passes the primary-source comparison gate
Claude Fable 5.1 Capabilities
NVIDIA Nemotron 3.5 Lightning 30B A3B Capabilities
Internal Comparison Graph
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Primary Evidence
Sources and Freshness
Questions
Claude Fable 5.1 vs NVIDIA Nemotron 3.5 Lightning 30B A3B FAQs
Is Claude Fable 5.1 or NVIDIA Nemotron 3.5 Lightning 30B A3B better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Claude Fable 5.1 and NVIDIA Nemotron 3.5 Lightning 30B A3B, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Claude Fable 5.1 or NVIDIA Nemotron 3.5 Lightning 30B A3B?+
Only Claude Fable 5.1 has a directly sourced input price: $10.00 per million tokens. Only Claude Fable 5.1 has a directly sourced output price: $50.00 per million tokens.
Which has a larger context window, Claude Fable 5.1 or NVIDIA Nemotron 3.5 Lightning 30B A3B?+
NVIDIA Nemotron 3.5 Lightning 30B A3B has the larger sourced context window. Claude Fable 5.1 supports 1,000K and NVIDIA Nemotron 3.5 Lightning 30B A3B supports 1,049K.
Which performs better in benchmarks, Claude Fable 5.1 or NVIDIA Nemotron 3.5 Lightning 30B A3B?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Claude Fable 5.1 or NVIDIA Nemotron 3.5 Lightning 30B A3B be self-hosted?+
NVIDIA Nemotron 3.5 Lightning 30B A3B is the only model in this pair currently marked as self-hostable. Claude Fable 5.1 is not marked open weight; NVIDIA Nemotron 3.5 Lightning 30B A3B is open weight.
Can Claude Fable 5.1 and NVIDIA Nemotron 3.5 Lightning 30B A3B understand images?+
Claude Fable 5.1 is documented with image input; NVIDIA Nemotron 3.5 Lightning 30B A3B is not documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Claude Fable 5.1 or NVIDIA Nemotron 3.5 Lightning 30B A3B?+
Neither has a larger sourced maximum output. Claude Fable 5.1 is 128K and NVIDIA Nemotron 3.5 Lightning 30B A3B is —.
Do Claude Fable 5.1 and NVIDIA Nemotron 3.5 Lightning 30B A3B support reasoning and tool use?+
Claude Fable 5.1: reasoning, tool calling, and image input. NVIDIA Nemotron 3.5 Lightning 30B A3B: reasoning and tool calling. Feature support does not establish relative quality.
Which is available from more inference providers, Claude Fable 5.1 or NVIDIA Nemotron 3.5 Lightning 30B A3B?+
Claude Fable 5.1 has 1 sourced provider route; NVIDIA Nemotron 3.5 Lightning 30B A3B has 1, a tie.
Which offers better value, Claude Fable 5.1 or NVIDIA Nemotron 3.5 Lightning 30B A3B?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.