As of August 30, 2026, MiMo-V2-Pro is 76% cheaper per million tokens than Seed 2.1 Pro. MiMo-V2-Pro is $0.43 / $0.87 per million input/output tokens versus Seed 2.1 Pro at $0.89 / $4.45. Sources: https://openrouter.ai/xiaomi/mimo-v2.5-pro and https://www.volcengine.com/product/doubao
Sources: OpenRouter pricing (https://openrouter.ai/xiaomi/mimo-v2.5-pro); ByteDance pricing (https://www.volcengine.com/product/doubao)
MiMo-V2-Pro
Xiaomi
Input
$0.43
Output
$0.87
Seed 2.1 Pro
ByteDance
Input
$0.89
Output
$4.45
Token pricing, specs, and benchmarks side by side
Each bar is share of the current leader on that eval. Click a row to open the board.
Arena Code Elo. Left is cheaper. Up is a higher score. The line is the best score you can buy at each price.
MiMo-V2-ProSeed 2.1 ProVerdict
MiMo-V2-Pro offers significantly lower pricing, while Seed 2.1 Pro leads on benchmark performance. Your choice depends on whether cost efficiency or raw capability matters more for your use case.
As of August 30, 2026, MiMo-V2-Pro is 76% cheaper on blended LLM API pricing. MiMo-V2-Pro costs $0.43 per million input tokens and $0.87 per million output tokens ($1.30 blended 1M-in + 1M-out). Seed 2.1 Pro costs $0.89 / $4.45 per million tokens ($5.34 blended). Sources: https://openrouter.ai/xiaomi/mimo-v2.5-pro and https://www.volcengine.com/product/doubao. The cheapest LLM for your app still depends on how many output tokens you generate.
MiMo-V2-Pro OpenRouter API pricing is $0.43 input and $0.87 output per million tokens via OpenRouter. 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.
MiMo-V2-Pro has a published SWE-bench Verified score of 78%. Seed 2.1 Pro does not have that eval on this page yet.
MiMo-V2-Pro supports a 1M token context window, while Seed 2.1 Pro supports 262K tokens. MiMo-V2-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.
Seed 2.1 Pro leads on 1 of 1 shared benchmarks versus MiMo-V2-Pro's 0 wins. 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.
Both MiMo-V2-Pro and Seed 2.1 Pro are production API models. For cost-sensitive production traffic, MiMo-V2-Pro 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.
Yes. Call MiMo-V2-Pro through OpenRouter 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.
List rates are the latest published OpenRouter API pricing and ByteDance API pricing, quoted per million tokens. Official rate sheets: https://openrouter.ai/xiaomi/mimo-v2.5-pro 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.
MiMo-V2-Pro supports up to 16K 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.
Neither MiMo-V2-Pro 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.
Use the model pickers at the top of this LLM comparison. Search any model in the index and the URL updates. Open MiMo-V2-Pro 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.
This comparison covers API pricing, context window, throughput, and benchmark scores. MiMo-V2-Pro costs $0.43/M input and $0.87/M output via OpenRouter. Seed 2.1 Pro costs $0.89/M input and $4.45/M output.
Rank both on the LLM leaderboard, SWE-bench, and Humanity's Last Exam.
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