Nemotron 3 Ultra 550B A55B vs GPT-OSS 120B
Benchmarks, API Token Pricing, Context Window & Speed Comparison
Related topics (12)
Nemotron 3 Ultra 550B A55B by NVIDIA and GPT-OSS 120B by OpenAI represent two of the frontier AI models analyzed in our comprehensive 2026 AI benchmark and LLM comparison. In this head-to-head evaluation, we examine API token pricing, context window specifications, inference speed (tokens per second), and empirical reasoning performance. From a pure economic perspective, GPT-OSS 120B holds a notable pricing advantage for token ingestion. On output generation, GPT-OSS 120B is more economical per million generated tokens. In data-heavy architectures requiring extensive repository or document analysis, Nemotron 3 Ultra 550B A55B provides an expanded memory horizon with 1,000K tokens. In latency-sensitive production environments, GPT-OSS 120B leads in tokens-per-second throughput, making it ideal for real-time conversational agents and high-concurrency workflows. Below is the complete empirical head-to-head breakdown across cost, speed, context, and capability matrices.
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Nemotron 3 Ultra 550B A55B
开源权重模型NVIDIA 推出的 Nemotron 3 Ultra 550B A55B 人工智能模型，具备 1M 上下文窗口，输入价格为 $1/百万 Token，输出价格为 $3/百万 Token，专为高质量生产环境、推理与自动化工作流打造。
$1.00 / 1M
$3.00 / 1M
1M tokens
64.5%
GPT-OSS 120B
开源权重模型OpenAI 推出的 GPT-OSS 120B 人工智能模型，具备 131K 上下文窗口，输入价格为 $0.15/百万 Token，输出价格为 $0.6/百万 Token，专为高质量生产环境、推理与自动化工作流打造。
$0.15 / 1M
$0.60 / 1M
131.1K tokens
45.5%
核心差异一览
- GPT-OSS 120B is 5.8x cheaper for API usage (input + output tokens combined).
- Nemotron 3 Ultra 550B A55B has a larger context window (1M vs 131K tokens).
- GPT-OSS 120B is faster at 95 tok/s vs 65 tok/s.
- Nemotron 3 Ultra 550B A55B leads on SWE-bench coding (64.5% vs 45.5%).
| Feature | Nemotron 3 Ultra 550B A55B | GPT-OSS 120B |
|---|---|---|
Intelligence Index Composite reasoning & knowledge score (0-100) | 60 | 56 |
Provider | NVIDIA | OpenAI |
Input Price Cost per million input tokens | $1.00 / 1M | $0.15 / 1M |
Output Price Cost per million output tokens | $3.00 / 1M | $0.60 / 1M |
Blended Price Weighted 7:2:1 cache:input:output per 1M | $0.68 / 1M | $0.10 / 1M |
Context Window Maximum input + output tokens | 1M tokens~1,500 A4 pages of text | 131.1K tokens~197 A4 pages of text |
Max Output Tokens Per single request | 66K | 33K |
Throughput Speed Tokens generated per second | 65 tok/s | 95 tok/s |
SWE-bench Verified Real-world software engineering | 64.5% | 45.5% |
GPQA Diamond Graduate-level reasoning | 76% | 68.5% |
Cached Input Price Prompt caching discount per 1M tokens | $0.25 / 1M | $0.01 / 1M |
各项指标谁更胜一筹？
At-a-glance decision framework权威基准测试得分对比
Official evaluation metrics verified by independent third-party research labs.
Industry benchmark evaluating real-world GitHub issue resolution and multi-file debugging.
Challenging questions created by domain experts to test complex PhD-level reasoning.
Hardened reasoning and academic knowledge benchmark with reduced lucky-guess probability.
Crowdsourced human preference evaluation based on blind, head-to-head model battles.
Extremely difficult, closed-ended questions spanning the frontier of human expert knowledge.
Autonomous multi-step tasks executed inside a real command-line terminal environment.
Research-grade coding problems drawn from real scientific and numerical workloads.
Contamination-free competitive programming problems collected continuously over time.
American Invitational Mathematics Examination — multi-step Olympiad-level reasoning.
Accuracy when reasoning over very large inputs that fill the model context window.
Tokens emitted per second during active generation streaming.
延迟与响应速度
Time to first token (TTFT) and estimated end-to-end response time for a typical 500-token response.
实时 Token 成本模拟器
Adjust sliders to calculate projected monthly cloud API spending with prompt caching discounts.
Nemotron 3 Ultra 550B A55B · Strengths & Key Advantages
- 由 NVIDIA 研发的高精度 Colossal Sparse MoE (550B Total / 55B Active) 架构，支持 1M 上下文窗口
- 极具竞争力的 API 定价（输入 $1/1M，输出 $3/1M），支持高速推理与工具调用
- 在代码生成、逻辑推理与多语言处理基准测试中表现出色
Considerations & Trade-offs
- 超长上下文请求需要规划 Token 成本与并发配额
- 针对特定垂直领域任务建议结合系统提示词与检索增强（RAG）以获得最佳效果
GPT-OSS 120B · Strengths & Key Advantages
- 由 OpenAI 研发的高精度 Sparse MoE transformer with reasoning 架构，支持 131K 上下文窗口
- 极具竞争力的 API 定价（输入 $0.15/1M，输出 $0.6/1M），支持高速推理与工具调用
- 在代码生成、逻辑推理与多语言处理基准测试中表现出色
Considerations & Trade-offs
- 超长上下文请求需要规划 Token 成本与并发配额
- 针对特定垂直领域任务建议结合系统提示词与检索增强（RAG）以获得最佳效果
Token Use & Task Economics
Estimated cost and token consumption to complete one representative agentic task.
| Metric | Nemotron 3 Ultra 550B A55B | GPT-OSS 120B |
|---|---|---|
Cost per Task Estimated USD to finish one task | $0.85 | $0.14 |
Output Tokens / Task Tokens generated per task | 48K | 45K |
Reasoning Tokens / Task Thinking tokens burned per task | 24K | 22K |
技术规格参数
Architecture, release timeline, capabilities, and modalities.
| Feature | Nemotron 3 Ultra 550B A55B | GPT-OSS 120B |
|---|---|---|
| Official API Model ID (SDK) | nemotron-3-ultra-550b-a55b | gpt-oss-120b |
| API Protocol | OpenAI-Compatible REST / vLLM / SGLang / HuggingFace TGI | OpenAI Responses API & Chat Completions v1 |
| Release Date | 2026-06 | 2025-08 |
| Knowledge Cutoff | February 2026 | June 2024 |
| Architecture | Colossal Sparse MoE (550B Total / 55B Active) | Sparse MoE transformer with reasoning |
| Parameters | 550B (55B active MoE) | 117B (5.1B active MoE) |
| Enterprise Rate Limits (RPM / TPM) | Unlimited (Hardware-bound on self-hosted GPU) / 10,000 RPM Cloud · Unlimited local throughput / 10M+ TPM Managed Cloud | Unlimited (Hardware-bound on self-hosted GPU) / 10,000 RPM Cloud · Unlimited local throughput / 10M+ TPM Managed Cloud |
| Long-Context Tier (>128K/200K) | Flat rate ($1/1M in) across full 1000K window | Flat rate ($0.15/1M in) across full 131K window |
| Prompt Cache Policy & TTL | Cached input at $0.25/1M tokens | Automatic prefix caching at $0.015/1M (no extra cache-write fee) |
| Computer Use / GUI Agent | API / CLI Tool-Use & DOM Agent ready (no raw pixel desktop click loop) | API / CLI Tool-Use & DOM Agent ready (no raw pixel desktop click loop) |
| MCP & Parallel Tool Calling | Native MCP Client/Server ready · Parallel function calling · 100% Strict JSON Schema | Native MCP Client/Server ready · Parallel function calling · 100% Strict JSON Schema |
| Web Search Grounding & Sandbox | Supported via external Tavily/Exa Search & E2B/Docker Sandbox tools | Native Web Search tool + Hosted Code Interpreter & File Search RAG |
| Official Fine-Tuning Support | Full Weights SFT, LoRA, QLoRA, DPO & GRPO RL (Unsloth / Axolotl / Llama-Factory) | Full Weights SFT, LoRA, QLoRA, DPO & GRPO RL (Unsloth / Axolotl / Llama-Factory) |
| Multimodal Token Billing | Text BPE (~4 chars/token) | Text BPE (~4 chars/token) |
| Quantization & Min GPU VRAM | BF16 / FP16, FP8 Dynamic, INT4 AWQ / GPTQ, GGUF (Q4_K_M / Q8_0) · 341 GB VRAM (4-bit Quantized) · 1183 GB VRAM (Native BF16) | BF16 / FP16, FP8 Dynamic, INT4 AWQ / GPTQ, GGUF (Q4_K_M / Q8_0) · 73 GB VRAM (4-bit Quantized) · 252 GB VRAM (Native BF16) |
| Safety & Frontier Classification | Open-Weights System Card + Customizable Guardrail Layer (Llama Guard / ShieldGemma) | OpenAI Preparedness Framework Audited & System Card Published |
| Enterprise Compliance (ZDR/HIPAA/SOC2) | 100% Air-Gapped On-Premises / Private VPC · Full HIPAA, GDPR & SOC2 Control | 100% Air-Gapped On-Premises / Private VPC · Full HIPAA, GDPR & SOC2 Control |
| Input Modalities | text | text |
| Output Modalities | text | text |
Nemotron 3 Ultra 550B A55B vs GPT-OSS 120B: 常见问题解答 (FAQ)
Which is more intelligent, Nemotron 3 Ultra 550B A55B or GPT-OSS 120B?
Nemotron 3 Ultra 550B A55B is more intelligent. It scores 60 compared with 56 on the composite Intelligence Index.
Which model is faster?
GPT-OSS 120B is faster, generating 95 tokens per second compared with 65 tokens per second.
Which model is cheaper to run?
GPT-OSS 120B is cheaper at $0.10 per 1M tokens blended, compared with $0.68 (7:2:1 cache:input:output ratio).
Which model has lower latency?
GPT-OSS 120B has lower latency, with a time to first token of 0.48s compared with 0.62s.
Which model has a larger context window?
Nemotron 3 Ultra 550B A55B has a larger context window, supporting 1M tokens compared with 131.1K tokens.
综合结论
Verdict & Model Selection Recommendation: Choose Nemotron 3 Ultra 550B A55B if your priority is National AI initiatives, sovereign defense intelligence, and enterprise-wide autonomous agent swarms. Its performance in demanding tasks justifies its operational token cost. Choose GPT-OSS 120B if your workflow prioritizes Self-hosted agents that need near-frontier quality on private data. For large-scale batch processing or customer-facing conversational interfaces, its balance of speed and economics delivers superior ROI.
常见问题 (FAQ)
How does Nemotron 3 Ultra 550B A55B compare to GPT-OSS 120B in API token pricing and cost per token?+
Nemotron 3 Ultra 550B A55B costs $1.00 per 1M input tokens and $3.00 per 1M output tokens, whereas GPT-OSS 120B costs $0.15 input and $0.60 output. Overall, GPT-OSS 120B is the more cost-effective model for high-volume API pipelines. Both models support prompt caching discounts of up to 90% for repeated prompt prefixes.
Which model has a larger context window: Nemotron 3 Ultra 550B A55B or GPT-OSS 120B?+
Nemotron 3 Ultra 550B A55B supports a context window of 1,000K tokens (~750k words), while GPT-OSS 120B supports 131K tokens (~98k words). Therefore, Nemotron 3 Ultra 550B A55B can process more textual data and document context in a single prompt.
Which AI model is better for software engineering and coding: Nemotron 3 Ultra 550B A55B or GPT-OSS 120B?+
Nemotron 3 Ultra 550B A55B scores 64.5% on SWE-bench Verified while GPT-OSS 120B scores 45.5%. For autonomous software engineering and multi-file debugging, Nemotron 3 Ultra 550B A55B holds the verified benchmark lead.
What is the difference in reasoning capability and extended thinking between Nemotron 3 Ultra 550B A55B and GPT-OSS 120B?+
Nemotron 3 Ultra 550B A55B features native chain-of-thought extended thinking mode with configurable reasoning effort. In contrast, GPT-OSS 120B provides chain-of-thought reasoning depth for complex math and science.
How does inference speed (tokens per second) compare between Nemotron 3 Ultra 550B A55B and GPT-OSS 120B?+
Nemotron 3 Ultra 550B A55B generates approximately 65 tokens per second, while GPT-OSS 120B delivers 95 tokens per second. In latency-sensitive production environments, GPT-OSS 120B provides faster time-to-first-token (TTFT) and higher streaming response velocity.
Can you implement a tiered LLM routing setup combining Nemotron 3 Ultra 550B A55B and GPT-OSS 120B to optimize costs?+
Yes! High-efficiency architectures route high-frequency routine classification and conversational tasks to GPT-OSS 120B to save operational costs, and dynamically escalate complex architectural queries or reasoning tasks to Nemotron 3 Ultra 550B A55B. This tiered routing pattern cuts overall API bills by up to 70%.
Understand key metrics like context window, token pricing, reasoning mode, and SWE-bench scores in our comprehensive AI glossary.
Related reading
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- GPT-OSS 120B vs Llama 5: Benchmarks, Pricing & Speed Comparison对比
- Llama 4 Behemoth vs Nemotron 3 Ultra 550B A55B: Benchmarks, Pricing & Speed Comparison对比
- Nemotron 3 Super 120B A12B vs GPT-OSS 120B: Benchmarks, Pricing & Speed Comparison对比
- Nemotron 3 Ultra 550B A55B vs Gemini 4 Argon: Benchmarks, Pricing & Speed Comparison对比
Benchmark scores, token prices, and rate limits evolve rapidly as AI labs release model updates. Always verify current specifications and pricing on the official provider documentation.
数据来源: GetInfoUs Independent AI Benchmarks & Official API Specs