Comprehensive side-by-side LLM comparison
Seed 2.0 Pro offers 136.4K more tokens in context window than DeepSeek-V3.1. DeepSeek-V3.1 is $1.47 cheaper per million tokens. Seed 2.0 Pro supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
DeepSeek
DeepSeek-V3.1, released by DeepSeek in August 2025, is a hybrid large language model with 671 billion total parameters (37 billion active) that unifies the capabilities of DeepSeek-V3 and DeepSeek-R1 in a single model. It features a 128K token context window and supports both direct generation and extended reasoning modes selectable via the chat template. DeepSeek-V3.1 targets general-purpose tasks, coding, and complex reasoning under an open MIT license.
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.
5 months newer

DeepSeek-V3.1
DeepSeek
2025-08-21
Seed 2.0 Pro
ByteDance
2026-02-14
Cost per million tokens (USD)
DeepSeek-V3.1
Seed 2.0 Pro
Context window and performance specifications
Available providers and their performance metrics
DeepSeek-V3.1
DeepSeek
Seed 2.0 Pro
DeepSeek-V3.1
Seed 2.0 Pro
DeepSeek-V3.1
Seed 2.0 Pro
ByteDance API