Seed-2.0-Code

Tool callingStructured outputReasoningImage inputVideo input

Website

ByteDance Seed coding model for multimodal software engineering and long-running agents

Context: 262K
Released: 8mo ago
Input / 1M tokens: $0.50
Output / 1M tokens: $3.00

Sources:models.devOpenRouter

Benchmarks

DeepSWE is the primary coding benchmark where an exact model evaluation exists. Other sourced evaluations appear below; missing scores are not zero.

Not evaluated in DeepSWE 1.1 as of 2026-09-22. Results are only shown for exact model versions in the official dataset. Official leaderboard.

No benchmark results have been matched to this model yet.

Specifications

Developer: ByteDance Seed
Model family: Seed
Type: Language model
Predecessor: —
Successor: —
Released: February 14, 2026
Model ID: bytedance-seed/seed-2.0-code
Openness: Closed
License: —
Input modalities: text, image, video
Output modalities: text
Modality: text+image+video->text
Tokenizer: Other
Max output tokens: 131K
Hugging Face: —
Source freshness: Metadata synced Oct 8, 2026, 10:17 PM UTC

Additional source evidence

Source model: bytedance-seed/seed-2.0-code
Source family: seed
Last updated: 2026-02-14
Model context: 262K
Model output limit: 131K
Open weights: No
File attachments: Yes
Reasoning: Yes
Tool calling: Yes
Structured output: Yes
Temperature control: Yes

Complete source record (JSON)

{
  "id": "bytedance-seed/seed-2.0-code",
  "name": "Seed 2.0 Code",
  "description": "ByteDance Seed coding model for multimodal software engineering and long-running agents",
  "family": "seed",
  "last_updated": "2026-02-14",
  "attachment": true,
  "reasoning": true,
  "tool_call": true,
  "structured_output": true,
  "temperature": true,
  "modalities": {
    "input": [
      "text",
      "image",
      "video"
    ],
    "output": [
      "text"
    ]
  },
  "limit": {
    "context": 262144,
    "output": 131072
  },
  "release_date": "2026-02-14",
  "open_weights": false
}

Infrastructure

Provider availability

All providers

Provider	Endpoint	Context	Input /M tokens	Output /M tokens	Cached input /M tokens	Cache write /M tokens	Uptime 1d	Data handling
Seed	seed/fp8	262K	$0.50	$3.00	—	—	100.00%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15

Provider data:OpenRouter