Which is cheaper, Llama 3.1 Nemotron Ultra 253B v1 or Seed 2.1 Pro?
As of August 30, 2026, Llama 3.1 Nemotron Ultra 253B v1 is 55% cheaper on blended LLM API pricing. Llama 3.1 Nemotron Ultra 253B v1 costs $0.60 per million input tokens and $1.80 per million output tokens ($2.40 blended 1M-in + 1M-out). Seed 2.1 Pro costs $0.89 / $4.45 per million tokens ($5.34 blended). Sources: https://build.nvidia.com/nvidia/llama-3_1-nemotron-ultra-253b-v1 and https://www.volcengine.com/product/doubao. The cheapest LLM for your app still depends on how many output tokens you generate.
How much does Llama 3.1 Nemotron Ultra 253B v1 vs Seed 2.1 Pro cost per million tokens?
Llama 3.1 Nemotron Ultra 253B v1 NVIDIA API pricing is $0.60 input and $1.80 output per million tokens via NVIDIA. Seed 2.1 Pro ByteDance API pricing is $0.89 input and $4.45 output per million tokens via ByteDance. Use those four numbers, not ChatGPT Plus or Claude Pro subscription prices, when you are comparing APIs.
Which is better for coding, Llama 3.1 Nemotron Ultra 253B v1 or Seed 2.1 Pro?
Seed 2.1 Pro has a published SWE-bench Pro score of 57.5%. Llama 3.1 Nemotron Ultra 253B v1 does not have that eval on this page yet.
What is the context window for Llama 3.1 Nemotron Ultra 253B v1 vs Seed 2.1 Pro?
Llama 3.1 Nemotron Ultra 253B v1 supports a 131K token context window, while Seed 2.1 Pro supports 262K tokens. Seed 2.1 Pro offers a larger context window. Filling a larger window bills more input tokens, so the cheaper-per-million model can still cost more on long documents.
Which model performs better on benchmarks, Llama 3.1 Nemotron Ultra 253B v1 or Seed 2.1 Pro?
Shared benchmark scores for Llama 3.1 Nemotron Ultra 253B v1 and Seed 2.1 Pro are still limited. Check the comparison table for the evals each model has published. Check the comparison table for GPQA Diamond, SWE-bench, MMLU, HLE, and the other evals we track. Token price and benchmark score together are the usual LLM comparison, not either number alone.
Is Llama 3.1 Nemotron Ultra 253B v1 or Seed 2.1 Pro better for production use?
Both Llama 3.1 Nemotron Ultra 253B v1 and Seed 2.1 Pro are production API models. For cost-sensitive production traffic, Llama 3.1 Nemotron Ultra 253B v1 has better economics on the blended 1M-in + 1M-out scale. For maximum capability, weight the benchmark table for your domain. Many production stacks route cheap models for drafts and a frontier model for the hard turn, which is usually cheaper than sending everything to the expensive API.
Can I switch between Llama 3.1 Nemotron Ultra 253B v1 and Seed 2.1 Pro in my app?
Yes. Call Llama 3.1 Nemotron Ultra 253B v1 through NVIDIA and Seed 2.1 Pro through ByteDance with separate API keys, or through a gateway that already wraps both. Keep prompts in tokens, not characters, when you estimate the invoice. AnotherWrapper templates can swap providers without rewriting auth and billing.
How accurate is this Llama 3.1 Nemotron Ultra 253B v1 vs Seed 2.1 Pro pricing data?
List rates are the latest published NVIDIA API pricing and ByteDance API pricing, quoted per million tokens. Official rate sheets: https://build.nvidia.com/nvidia/llama-3_1-nemotron-ultra-253b-v1 and https://www.volcengine.com/product/doubao. Prompt caching, batch APIs, and committed-use discounts can change the invoice. Benchmark scores are from official publications and independent evals, updated as new numbers land.
What is the output token limit for Llama 3.1 Nemotron Ultra 253B v1 and Seed 2.1 Pro?
Llama 3.1 Nemotron Ultra 253B v1 supports up to an unspecified number of output tokens per request, while Seed 2.1 Pro supports up to an unspecified number of output tokens. Output tokens are usually the expensive half of API pricing, so a higher max output cap is a capability, not a discount.
Which model has better throughput, Llama 3.1 Nemotron Ultra 253B v1 or Seed 2.1 Pro?
Neither Llama 3.1 Nemotron Ultra 253B v1 nor Seed 2.1 Pro has published throughput data on this page yet. Throughput (tokens per second) and time-to-first-token are why two models with the same per-million-token price can still feel different in chat and agents.
How do I switch the models in this Llama 3.1 Nemotron Ultra 253B v1 vs Seed 2.1 Pro comparison?
Use the model pickers at the top of this LLM comparison. Search any model in the index and the URL updates. Open Llama 3.1 Nemotron Ultra 253B v1 or Seed 2.1 Pro from the sidebar for the single-model API pricing page, or go back to the LLM pricing table to sort by cheapest blended cost.
