Bytedance Seed: Seed 2.0 Code

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

Source-linked seed Closed weights Released 2026-02-14

API record Report

InputT

OutputT

Input price$0.4/M

Output price$2.4/M

Context262.144K

Max output131.072K

Providers8

Inference availability

Providers

Provider-specific identifiers, limits, and listed prices per million tokens. Every row links back to the provider's own documentation.

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Providers offering Seed 2.0 Code
Provider	Provider model ID	Context	Max output	Input	Output	Cache read	Capabilities	Docs
EmpirioLabs AI	`seed-2-0-code`	256K	128K	$0.4	$2.4	$0.4	ReasoningToolsJSON	Docs ↗
Merge Gateway	`bytedance/dola-seed-2.0-code`	256K	128K	$0.4	$2.4	—	Not listed	Docs ↗
Kilo Gateway	`bytedance-seed/seed-2.0-code`	262.144K	131.072K	$0.5	$3	—	ReasoningToolsJSON	Docs ↗
OpenRouter	`bytedance-seed/seed-2.0-code`	262.144K	131.072K	$0.5	$3	—	ReasoningToolsJSON	Docs ↗
NanoGPT	`bytedance-seed/seed-2.0-code`	262.144K	131.072K	$0.5	$3	$0.25	ReasoningToolsJSON	Docs ↗
Eden AI	`deepinfra/ByteDance/Seed-2.0-code`	256K	131.072K	$0.5	$3	$0.1	Reasoning	Docs ↗
Deep Infra	`ByteDance/Seed-2.0-code`	256K	131.072K	$0.5	$3	$0.1	ReasoningToolsJSON	Docs ↗
Ofox	`volcengine/doubao-seed-2.0-code`	256K	128K	$0.67	$3.36	$0.14	ReasoningToolsJSON	Docs ↗

Capability badges appear only where the provider catalog explicitly lists support. A blank cell means the source is silent, not that the feature is absent.

Listed rates

Price across providers

Input price per million tokens as published by each provider. Bars are drawn from listed rates only — no traffic weighting, since the catalog observes no requests.

Lowest input $0.4/M

Across 8 priced providers

Median input $0.5/M

Midpoint of listed rates

Highest input $0.67/M

1.7× the lowest listed rate

Output range $2.4 – $3.36

Per million output tokens

EmpirioLabs AI $0.4/M

Merge Gateway $0.4/M

Kilo Gateway $0.5/M

OpenRouter $0.5/M

NanoGPT $0.5/M

Eden AI $0.5/M

Deep Infra $0.5/M

Ofox $0.67/M

Cost calculator

Estimate a workload

Provider Input tokens 1,000,000 Output tokens 250,000 Cached input 0%

$0.00

Excludes taxes, non-token charges, and tiered discounts.

2 providers list the identical $0.4 input rate, so price alone will not separate them — compare context limits, max output, and capabilities above.

Context limits also differ by provider, from 256K to 262.144K tokens. Compare the provider table above before choosing on price alone.

Specification

Capabilities

Recorded from the source catalog and provider listings.

✓ Reasoning Yes

✓ Tool calling Yes

✓ Structured output Yes

✓ Attachments Yes

✓ Vision input Yes

× Open weights No

Creator: Bytedance Seed
Model family: seed
Knowledge cutoff: Not documented
License: Not documented
Release date: 2026-02-14
Model ID: bytedance-seed/seed-2.0-code

Published evaluations

Benchmarks

Every result stays attached to its source, version, metric and harness. Scores from different versions are never merged, and the profile below plots each benchmark against its own population rather than on a shared scale.

Benchmark registry

No published benchmark results

ModelBench does not infer quality from price, context size, or model name. When a source publishes a comparable result, it appears here with its version and link.

Read the methodology

Catalog activity

Change log

Field-level changes detected between successful source imports.

Full change log

Aug 17, 2026Price Completion3.0 → 2.4

Aug 17, 2026Price Prompt0.5 → 0.4

Aug 17, 2026Price Completion2.4 → 3.0

Aug 17, 2026Price Prompt0.4 → 0.5

Aug 17, 2026Price Completion3.0 → 2.4

Aug 17, 2026Price Prompt0.5 → 0.4

Aug 17, 2026Price Completion2.4 → 3.0

Aug 17, 2026Price Prompt0.4 → 0.5

Aug 17, 2026Price Completion3.0 → 2.4

Aug 17, 2026Price Prompt0.5 → 0.4

Provenance

Sources & verification

Every figure on this page traces back to one of these records.

Methodology

Last verified: Aug 17, 2026
Status: Source-linked
Confidence: Medium
Catalog source: Models.dev

Models.devcatalog ↗EmpirioLabs AI documentationprovider documentation ↗Merge Gateway documentationprovider documentation ↗Kilo Gateway documentationprovider documentation ↗OpenRouter documentationprovider documentation ↗NanoGPT documentationprovider documentation ↗Eden AI documentationprovider documentation ↗Deep Infra documentationprovider documentation ↗Ofox documentationprovider documentation ↗

Public API

Use this record

Fetch the complete source-linked model record. No key, no account, no rate-limited tier.

API documentation

Endpoint

GET https://www.modelbench.lol/api/v1/models/bytedance-seed/seed-2.0-code

curl

curl "https://www.modelbench.lol/api/v1/models/bytedance-seed/seed-2.0-code"

Common questions

Frequently asked questions

Answered directly from the stored record — nothing here is generated beyond the catalog's own fields.

What is Seed 2.0 Code?

ByteDance Seed coding model for multimodal software engineering and long-running agents. It is published by Bytedance Seed and catalogued here from Models.dev.

How much does Seed 2.0 Code cost?

Listed input pricing starts at $0.4 per million tokens from EmpirioLabs AI, rising to $0.67 across 8 listed providers.

What is the context length of Seed 2.0 Code?

Seed 2.0 Code accepts up to 262.144K tokens of context and returns up to 131.072K output tokens.

Does Seed 2.0 Code support tool calling and structured output?

Provider catalogs list support for tool calling, structured output, reasoning, and image input.

Which providers serve Seed 2.0 Code?

8 providers list this model: EmpirioLabs AI, Merge Gateway, Kilo Gateway, OpenRouter, NanoGPT, Eden AI and 2 more.

Are the weights for Seed 2.0 Code open?

No. This model is served through hosted APIs only.

When was Seed 2.0 Code released?

The catalog records a release date of 2026-02-14, last verified Aug 17, 2026.

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