Seed 2.0 Pro

by ByteDance

Seed 2.0 Pro is a model from ByteDance, released on February 14, 2026. It has a 256K-token context window and can generate up to 131K output tokens. API pricing is $0.5 per 1M input tokens and $3 per 1M output tokens. It ranks #47 of 220 models by Intelligence Score with a score of 39.4.

ByteDance's flagship general-purpose agent model focused on long-chain reasoning and robustness in complex workflows. Features comprehensive multimodal understanding (text, image, video), enhanced instruction-following, and strong coding capabilities. Competes with GPT-5.2 and Gemini 3 Pro across scientific, reasoning, and coding benchmarks.

Key specs

ProviderByteDance
Release date2026-02-14
Licenseproprietary
Context window256K tokens
Max output131K tokens
Input price$0.5 / 1M tokens
Output price$3 / 1M tokens
Intelligence Score39.4
Coding index21.8
Output speed5 tokens/s
Time to first token13.14 s

Quick answers

What is the context window of Seed 2.0 Pro?

Seed 2.0 Pro has a context window of 256K tokens, with a maximum output of 131K tokens per response.

How much does Seed 2.0 Pro cost?

Seed 2.0 Pro costs $0.5 per 1M input tokens and $3 per 1M output tokens through the API.

Is Seed 2.0 Pro open source?

No. Seed 2.0 Pro is a proprietary model from ByteDance (proprietary license).

When was Seed 2.0 Pro released?

ByteDance released Seed 2.0 Pro on February 14, 2026.

How does Seed 2.0 Pro compare to Claude Opus 5.5 (Reasoning)?

Seed 2.0 Pro scores 39.4 on the Intelligence Score versus 60.5 for Claude Opus 5.5 (Reasoning), the current #1. Input pricing is $0.5 vs $4 per 1M tokens.

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