As of August 30, 2026, Laguna XS 2.1 is 87% cheaper per million tokens than Seed 2.0 Lite. Laguna XS 2.1 is $0.10 / $0.20 per million input/output tokens versus Seed 2.0 Lite at $0.25 / $2.00. Sources: https://poolside.ai and https://openrouter.ai/bytedance-seed/seed-2.0-lite
Sources: Poolside pricing (https://poolside.ai); OpenRouter pricing (https://openrouter.ai/bytedance-seed/seed-2.0-lite)
Laguna XS 2.1
Poolside
Input
$0.10
Output
$0.20
Seed 2.0 Lite
ByteDance
Input
$0.25
Output
$2.00
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.
SWE-bench Verified. Left is cheaper. Up is a higher score. The line is the best score you can buy at each price.
Laguna XS 2.1Seed 2.0 LiteVerdict
Laguna XS 2.1 offers significantly lower pricing, while Seed 2.0 Lite 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, Laguna XS 2.1 is 87% cheaper on blended LLM API pricing. Laguna XS 2.1 costs $0.10 per million input tokens and $0.20 per million output tokens ($0.30 blended 1M-in + 1M-out). Seed 2.0 Lite costs $0.25 / $2.00 per million tokens ($2.25 blended). Sources: https://poolside.ai and https://openrouter.ai/bytedance-seed/seed-2.0-lite. The cheapest LLM for your app still depends on how many output tokens you generate.
Laguna XS 2.1 Poolside API pricing is $0.10 input and $0.20 output per million tokens via Poolside. Seed 2.0 Lite OpenRouter API pricing is $0.25 input and $2.00 output per million tokens via OpenRouter. Use those four numbers, not ChatGPT Plus or Claude Pro subscription prices, when you are comparing APIs.
Seed 2.0 Lite leads on SWE-bench Verified: Laguna XS 2.1 at 70.9% vs Seed 2.0 Lite at 73.5%. SWE-bench measures real GitHub fixes; LiveCodeBench measures contest programming.
Laguna XS 2.1 supports a 262K token context window, while Seed 2.0 Lite supports 131K tokens. Laguna XS 2.1 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 2.0 Lite leads on 1 of 1 shared benchmarks versus Laguna XS 2.1'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 Laguna XS 2.1 and Seed 2.0 Lite are production API models. For cost-sensitive production traffic, Laguna XS 2.1 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 Laguna XS 2.1 through Poolside and Seed 2.0 Lite through OpenRouter 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 Poolside API pricing and OpenRouter API pricing, quoted per million tokens. Official rate sheets: https://poolside.ai and https://openrouter.ai/bytedance-seed/seed-2.0-lite. 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.
Laguna XS 2.1 supports up to an unspecified number of output tokens per request, while Seed 2.0 Lite 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 Laguna XS 2.1 nor Seed 2.0 Lite 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 Laguna XS 2.1 or Seed 2.0 Lite 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. Laguna XS 2.1 costs $0.10/M input and $0.20/M output. Seed 2.0 Lite costs $0.25/M input and $2.00/M output via OpenRouter.
Rank both on the LLM leaderboard, SWE-bench, and Humanity's Last Exam.
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