Comprehensive side-by-side LLM comparison
Seed 2.0 Pro offers 140.3K more tokens in context window than GPT-OSS-20B. Seed 2.0 Pro is $Infinity cheaper per million tokens. Seed 2.0 Pro supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
OpenAI
GPT-OSS-20B is an open-weight large language model with 20 billion parameters from OpenAI's open-source model initiative. It targets deployments requiring a smaller, efficient model that can run on consumer or mid-tier hardware while maintaining strong reasoning and coding capabilities relative to its size.
ByteDance
Seed 2.0 Pro is ByteDance's flagship general-purpose model, released in February 2026 under the Doubao brand through the Volcengine API platform, developed by the company's Seed research team as a foundation for agentic applications requiring long-horizon reasoning and multimodal input comprehension. The model accepts text, images, and extended video — including hour-length recordings — targeting enterprise use cases in long-form document analysis, agentic coding (integrated with ByteDance's TRAE IDE), and multi-turn reasoning tasks. It anchors a three-tier product family alongside Seed 2.0 Lite and Mini, positioned as ByteDance's response to frontier model competition in the Chinese and global enterprise AI markets.
6 months newer

GPT-OSS-20B
OpenAI
2025-08-05
Seed 2.0 Pro
ByteDance
2026-02-14
Cost per million tokens (USD)
GPT-OSS-20B
Seed 2.0 Pro
Context window and performance specifications
Available providers and their performance metrics
GPT-OSS-20B
Hugging Face
Seed 2.0 Pro
GPT-OSS-20B
Seed 2.0 Pro
GPT-OSS-20B
Seed 2.0 Pro
ByteDance API