Kimi K3 vs NVIDIA Nemotron 3 Ultra 550B A55B BF16
Model Markets Rankings
Intelligence, Cost, and Efficiency
| Ranking | Kimi-K3 | NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16 |
|---|---|---|
| CostLower is better · Published-token output estimate | #24 of 36$0.194 per LiveBench case | UnrankedNot in the 36-model eligible cohort |
Ranks come from the current complete eligible cohorts. Green highlights appear only when both models are ranked in the same metric. Missing required inputs remain unranked, and the three dimensions are not collapsed into an overall winner.
Benchmark Performance
Available Benchmarks
Technical Differences
Side-by-Side Facts
| Field | Kimi-K3 | NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16 |
|---|---|---|
| Developer | Moonshot AI | NVIDIA |
| Family | Kimi K3 | Nvidia Nemotron 3 Ultra 550b A55b Bf16 |
| Model | Kimi-K3 | NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16 |
| Version | Kimi-K3 | NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16 |
| Lifecycle | active | active |
| Released | 2026-07-16 | 2026-06-04 |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text, Image | Text |
| Output modalities | Text | Text |
| Context window | 1,049K | 262K |
| Total parameters | 2.8T | 560.5B |
| Active parameters | 104B | 55B |
| License | other | other |
| Open weights | Yes | Yes |
| API available | Yes | Yes |
| Self-hostable | Yes | Yes |
| Provider access | Deepinfra (Standard), Fireworks Ai (Standard), Hugging Face (Standard), Openrouter (Standard), Together Ai (Standard) | Fireworks Ai (Standard), Hugging Face (Standard), Openrouter (Standard) |
| Capabilities | chat, generation, reasoning | chat, generation, reasoning, tools |
17 comparable fields · 11 material differences · Pair passes the primary-source comparison gate
Kimi K3 Capabilities
NVIDIA Nemotron 3 Ultra 550B A55B BF16 Capabilities
Internal Comparison Graph
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Primary Evidence
Sources and Freshness
Questions
Kimi K3 vs NVIDIA Nemotron 3 Ultra 550B A55B BF16 FAQs
Is Kimi K3 or NVIDIA Nemotron 3 Ultra 550B A55B BF16 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Kimi K3 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, Kimi K3 or NVIDIA Nemotron 3 Ultra 550B A55B BF16?+
Kimi K3 is $2.85 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. Kimi K3 is $14.25 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, Kimi K3 or NVIDIA Nemotron 3 Ultra 550B A55B BF16?+
Kimi K3 has the larger sourced context window. Kimi K3 supports 1,049K and NVIDIA Nemotron 3 Ultra 550B A55B BF16 supports 262K.
Which performs better in benchmarks, Kimi K3 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 Kimi K3 or NVIDIA Nemotron 3 Ultra 550B A55B BF16 be self-hosted?+
Both models have the same recorded self-hosting status: supported. Kimi K3 is open weight; NVIDIA Nemotron 3 Ultra 550B A55B BF16 is open weight.
Can Kimi K3 and NVIDIA Nemotron 3 Ultra 550B A55B BF16 understand images?+
Kimi K3 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, Kimi K3 or NVIDIA Nemotron 3 Ultra 550B A55B BF16?+
Neither has a larger sourced maximum output. Kimi K3 is — and NVIDIA Nemotron 3 Ultra 550B A55B BF16 is —.
Do Kimi K3 and NVIDIA Nemotron 3 Ultra 550B A55B BF16 support reasoning and tool use?+
Kimi K3: reasoning 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, Kimi K3 or NVIDIA Nemotron 3 Ultra 550B A55B BF16?+
Kimi K3 has 5 sourced provider routes; NVIDIA Nemotron 3 Ultra 550B A55B BF16 has 3, so Kimi K3 has broader tracked availability.
Which offers better value, Kimi K3 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.