Comprehensive side-by-side LLM comparison
o3 offers 27.6K more tokens in context window than Seed 2.0 Pro. Seed 2.0 Pro is $47.16 cheaper per million tokens. Both models have their strengths depending on your specific coding needs.
OpenAI
OpenAI o3, released by OpenAI in April 2025, is a large reasoning model that applies extended chain-of-thought processing to deliver improved performance on complex math, science, and coding tasks. It features a 200K token context window and native image understanding, with demonstrated strong results on mathematics and software engineering benchmarks. o3 targets demanding analytical and engineering tasks where deliberate, multi-step reasoning produces significantly better outcomes than direct generation.
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.
10 months newer

o3
OpenAI
2025-04-16
Seed 2.0 Pro
ByteDance
2026-02-14
Cost per million tokens (USD)
o3
Seed 2.0 Pro
Context window and performance specifications
Available providers and their performance metrics
o3
OpenAI
Seed 2.0 Pro
o3
Seed 2.0 Pro
o3
Seed 2.0 Pro
ByteDance API