Claude Sonnet 4.5 vs NVIDIA Nemotron 3 Ultra 550B A55B BF16
Benchmark Performance
Available Benchmarks
Technical Differences
Side-by-Side Facts
| Field | Claude Sonnet 4.5 | NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16 |
|---|---|---|
| Developer | Anthropic | NVIDIA |
| Family | Claude 4 | Nvidia Nemotron 3 Ultra 550b A55b Bf16 |
| Model | Claude Sonnet 4.5 | NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16 |
| Version | Claude Sonnet 4.5 | NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16 |
| Lifecycle | active | active |
| Released | 2025-09-29 | 2026-06-04 |
| Knowledge cutoff | 2025-01-01 | Unknown |
| Input modalities | Text, Image | Text |
| Output modalities | Text | Text |
| Context window | 200K | 262K |
| Total parameters | Unknown | 560.5B |
| Active parameters | Unknown | 55B |
| License | Unknown | other |
| Open weights | No | Yes |
| API available | Yes | Yes |
| Self-hostable | No | Yes |
| Provider access | Anthropic (Standard) | Fireworks Ai (Standard), Hugging Face (Standard), Openrouter (Standard) |
| Capabilities | chat, generation, reasoning, structured_outputs, tools | chat, generation, reasoning, tools |
14 comparable fields · 11 material differences · Pair passes the primary-source comparison gate
Claude Sonnet 4.5 Capabilities
NVIDIA Nemotron 3 Ultra 550B A55B BF16 Capabilities
Internal Comparison Graph
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Primary Evidence
Sources and Freshness
Questions
Claude Sonnet 4.5 vs NVIDIA Nemotron 3 Ultra 550B A55B BF16 FAQs
Is Claude Sonnet 4.5 or NVIDIA Nemotron 3 Ultra 550B A55B BF16 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Claude Sonnet 4.5 and NVIDIA Nemotron 3 Ultra 550B A55B BF16, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Claude Sonnet 4.5 or NVIDIA Nemotron 3 Ultra 550B A55B BF16?+
Claude Sonnet 4.5 is $3.00 and NVIDIA Nemotron 3 Ultra 550B A55B BF16 is $0.50 per million tokens, so NVIDIA Nemotron 3 Ultra 550B A55B BF16 is cheaper on this metric. Claude Sonnet 4.5 is $15.00 and NVIDIA Nemotron 3 Ultra 550B A55B BF16 is $2.20 per million tokens, so NVIDIA Nemotron 3 Ultra 550B A55B BF16 is cheaper on this metric.
Which has a larger context window, Claude Sonnet 4.5 or NVIDIA Nemotron 3 Ultra 550B A55B BF16?+
NVIDIA Nemotron 3 Ultra 550B A55B BF16 has the larger sourced context window. Claude Sonnet 4.5 supports 200K and NVIDIA Nemotron 3 Ultra 550B A55B BF16 supports 262K.
Which performs better in benchmarks, Claude Sonnet 4.5 or NVIDIA Nemotron 3 Ultra 550B A55B BF16?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Claude Sonnet 4.5 or NVIDIA Nemotron 3 Ultra 550B A55B BF16 be self-hosted?+
NVIDIA Nemotron 3 Ultra 550B A55B BF16 is the only model in this pair currently marked as self-hostable. Claude Sonnet 4.5 is not marked open weight; NVIDIA Nemotron 3 Ultra 550B A55B BF16 is open weight.
Can Claude Sonnet 4.5 and NVIDIA Nemotron 3 Ultra 550B A55B BF16 understand images?+
Claude Sonnet 4.5 is documented with image input; NVIDIA Nemotron 3 Ultra 550B A55B BF16 is not documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Claude Sonnet 4.5 or NVIDIA Nemotron 3 Ultra 550B A55B BF16?+
Neither has a larger sourced maximum output. Claude Sonnet 4.5 is 64K and NVIDIA Nemotron 3 Ultra 550B A55B BF16 is —.
Do Claude Sonnet 4.5 and NVIDIA Nemotron 3 Ultra 550B A55B BF16 support reasoning and tool use?+
Claude Sonnet 4.5: reasoning, tool calling, and image input. NVIDIA Nemotron 3 Ultra 550B A55B BF16: reasoning and tool calling. Feature support does not establish relative quality.
Which is available from more inference providers, Claude Sonnet 4.5 or NVIDIA Nemotron 3 Ultra 550B A55B BF16?+
Claude Sonnet 4.5 has 1 sourced provider route; NVIDIA Nemotron 3 Ultra 550B A55B BF16 has 3, so NVIDIA Nemotron 3 Ultra 550B A55B BF16 has broader tracked availability.
Which offers better value, Claude Sonnet 4.5 or NVIDIA Nemotron 3 Ultra 550B A55B BF16?+
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.