Claude Mythos 5.1 vs NVIDIA Nemotron 3.5 Lightning 30B A3B
At a Glance
| Compare | Claude Mythos 5.1Anthropic | |
|---|---|---|
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $10.00Anthropic ↗ · Sep 2, 2026 | Not reported |
| Output priceFrom · USD / 1M tokens | $50.00Anthropic ↗ · Sep 2, 2026 | Not reported |
| Context windowMaximum documented tokens | 1,000K | 1,049K |
| Model facts checked | Sep 2, 2026View model evidence → | Sep 3, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
Side-by-Side Facts
| Field | Claude Mythos 5.1 | NVIDIA Nemotron 3.5 Lightning 30B-A3B |
|---|---|---|
| Developer | Anthropic | NVIDIA |
| Family | Claude 5 1 | Nvidia Nemotron 3 5 Lightning |
| Model | Claude Mythos 5.1 | NVIDIA Nemotron 3.5 Lightning 30B-A3B |
| Version | Claude Mythos 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 (Project Glasswing) | Fireworks Ai (Standard) |
| Capabilities | chat, generation, reasoning, tools | agents, chat, generation, reasoning, tools |
Claude Mythos 5.1 Capabilities
NVIDIA Nemotron 3.5 Lightning 30B A3B Capabilities
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Primary Evidence
Sources and Freshness
Questions
Claude Mythos 5.1 vs NVIDIA Nemotron 3.5 Lightning 30B A3B FAQs
Is Claude Mythos 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 Mythos 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 Mythos 5.1 or NVIDIA Nemotron 3.5 Lightning 30B A3B?+
Only Claude Mythos 5.1 has a directly sourced input price: $10.00 per million tokens. Only Claude Mythos 5.1 has a directly sourced output price: $50.00 per million tokens.
Which has a larger context window, Claude Mythos 5.1 or NVIDIA Nemotron 3.5 Lightning 30B A3B?+
NVIDIA Nemotron 3.5 Lightning 30B A3B has the larger sourced context window. Claude Mythos 5.1 supports 1,000K and NVIDIA Nemotron 3.5 Lightning 30B A3B supports 1,049K.
Which performs better in benchmarks, Claude Mythos 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 Mythos 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 Mythos 5.1 is not marked open weight; NVIDIA Nemotron 3.5 Lightning 30B A3B is open weight.
Can Claude Mythos 5.1 and NVIDIA Nemotron 3.5 Lightning 30B A3B understand images?+
Claude Mythos 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 Mythos 5.1 or NVIDIA Nemotron 3.5 Lightning 30B A3B?+
Neither has a larger sourced maximum output. Claude Mythos 5.1 is 128K and NVIDIA Nemotron 3.5 Lightning 30B A3B is —.
Do Claude Mythos 5.1 and NVIDIA Nemotron 3.5 Lightning 30B A3B support reasoning and tool use?+
Claude Mythos 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 Mythos 5.1 or NVIDIA Nemotron 3.5 Lightning 30B A3B?+
Claude Mythos 5.1 has 1 sourced provider route; NVIDIA Nemotron 3.5 Lightning 30B A3B has 1, a tie.
Which offers better value, Claude Mythos 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.