ByteDance

Doubao Seed 2.1 Lite 260915

ByteDanceToken-basedDynamic Pricing
Alias:doubao-seed-2-1-lite-260915
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Compare doubao-seed-2-1-lite-260915 API pricing, supported endpoints, capabilities and access options on Modelsell.

textimagevideoaudioreasoningfunction_callingtoolsjson_modestructured_output
Starting price
View full pricing
Context
1M
Maximum input window
Max output
262.1K
Maximum tokens per response
Modalities
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Pricing by Supplier

Compare prices and service performance for this model across suppliers.

Suppliers1
USD · Per 1M tokensPerformance · Last 24 hours
SupplierDiscountInput/MOutput/MCache Read/MAudio Cache Read/MAudio In/M
Volcengine

火山引擎官方接口

-8%
$0.108235$0.117647
$0.365294$0.397059
$0.021647$0.023529
$0.324706$0.352941
$1.6235$1.7647
Crossed-out amounts are standard prices.Performance over the last 24 hours; actual results vary by request.

Scroll horizontally to compare all prices and performance metrics.

Capabilities / Supported modalities

StreamingReasoningFunction callingToolsStructured outputVisionJSON mode
Input
Output

Provider & data privacy

Provider
ByteDanceDocs
Tokenizer
Doubao tokenizer
License
Proprietary (commercial)Proprietary
Data retention88 daysNot used for upstream training by default

Performance

Benchmarks

Scores on standardized evaluations. Higher percentages are better — and rank percentile shows

Metrics sourced fromArtificial Analysis 2026-09-30·Doubao Seed 2.1 Lite 260915

This model is not included in the current benchmark snapshot.

Missing models or measurements are not zero scores.

Benchmark charts preserve the source model selection and reasoning settings. Missing models or measurements are not zero scores, and benchmark cost or speed is not this site’s service commitment.

About Doubao Seed 2.1 Lite 260915

用较低成本处理长材料和多模态任务

豆包 Seed 2.1 Lite 是字节跳动面向规模化应用的多模态深度思考模型,支持文本、图片、视频和音频输入,生成文本回答。它提供 1024K token 上下文窗口,最大回答与思维链预算均为 256K token,适合长文档整理、音视频理解、业务助手和需要多步判断的工作流。

相比只处理文字的助手,它可以把说明文档、界面截图和音视频中的证据放在一起分析。例如核对产品演示与需求清单、整理会议内容,或从业务材料中提取固定字段。关键结论应附上材料依据,并区分直接观察到的事实与推测。

模型支持工具调用、GUI 任务理解和结构化输出。应用需要提供可执行工具,并把每步结果返回模型;模型本身不会直接操作外部软件。处理代码和 Agent 任务时,应明确可操作范围、验收条件和失败后的重试方式。

默认启用深度思考。简单问答可在 Chat Completions 请求中设置 thinking: {"type":"disabled"};复杂分析可以保留默认设置,并为思考与最终回答留出足够输出预算。输出 token 费用包含思维链用量。

标准价格

以下是火山方舟常规在线推理官方参考价,单位为人民币 / 百万 token:

项目价格
非音频输入(文本、图片、视频视觉内容)¥0.80
文本输出(含思维链)¥2.70
非音频缓存读取¥0.16
音频输入¥12.00
音频缓存读取¥2.40

1024K 上下文范围内采用同一组标准单价。本站基础价格按配置汇率 1 USD = ¥6.8 换算,实际扣费叠加所选分组倍率。缓存存储属于上游独立的按时长计费项目,不作为普通 token 请求的缓存写入价格。

本站已验证普通及流式文本调用,并核对了实际扣费。现有网关尚未单独处理音频缓存优惠,表中音频缓存单价仅作官方参考,当前不会按该单价独立结算。音频调用尚未完成计费验证,生产音频业务需先核对用量明细与计费支持。

资料核实日期:2026-11-12。

官方来源

Use cases and prompting

调用示例

向本站 OpenAI 兼容接口发送请求:

POST /v1/chat/completions
Authorization: Bearer YOUR_API_KEY
Content-Type: application/json
{
  "model": "doubao-seed-2-1-lite-260915",
  "messages": [
    {"role": "user", "content": "请把这份需求整理为目标、约束、待确认事项和验收标准。"}
  ],
  "max_tokens": 2048,
  "thinking": {"type": "disabled"},
  "stream": false
}

需要深度思考时删除 thinking 字段,或使用 {"type":"enabled"},并相应提高 max_tokens。输出预算包含思维链和最终回答。

流式调用将 stream 改为 true,并设置 stream_options: {"include_usage":true},便于读取最后的 token 用量。使用图片、视频或音频时,按官方 Chat API 支持的内容块格式构造消息。本站已验证普通及流式文本调用。音频调用尚未完成计费验证;现有网关尚未单独处理音频缓存优惠,生产音频业务需先核对计费明细。

提问建议

长材料任务先说明需要提取的字段、判断标准和输出格式。让模型标注信息来源;材料没有的信息写“未提供”。工具任务按步骤执行、回传结果,并在关键动作前校验输入。视觉、视频和音频能力分别受输入清晰度、时长及接入端点限制影响。

API access

API documentation

Code samples

RequestPOST/v1/chat/completions
Example request
Parameters
ParameterTypeDefault / rangeDescription
temperature
number
=10 ~ 2
Sampling temperature; lower is more deterministic
top_p
number
=10 ~ 1
Nucleus sampling probability mass
max_tokens
integer>= 1Maximum number of tokens in the response
frequency_penalty
number
=0-2 ~ 2
Penalises repetition of frequent tokens
presence_penalty
number
=0-2 ~ 2
Encourages introducing new topics
stop
array—Up to 4 strings that stop generation
seed
integer—Deterministic sampling seed (best-effort)
n
integer
=1>= 1
Number of completions to generate
stream
boolean
=false
Stream tokens via Server-Sent Events
response_format
object—Force JSON object or schema-conforming output
tools
array—Tool / function declarations the model may call
tool_choice
string
autononerequired
Tool-choice policy or specific tool name
logprobs
boolean
=false
Return per-token log probabilities
top_logprobs
integer0 ~ 20Number of top log probabilities returned per token
logit_bias
object—Per-token logit bias map
user
string—End-user identifier for abuse monitoring

Replace <YOUR_API_KEY> with the API key from your token settings.

Authentication

All requests must include Authorization: Bearer <TOKEN> header. Anthropic-formatted endpoints accept the x-api-key header instead.

Generate tokens from the Tokens page; you can scope them to specific models, groups, IPs, and rate-limits.

Supported parameters

Generation parameters
ParameterTypeDefault / rangeDescription
temperature
number
=10 ~ 2
Sampling temperature; lower is more deterministic
top_p
number
=10 ~ 1
Nucleus sampling probability mass
max_tokens
integer>= 1Maximum number of tokens in the response
frequency_penalty
number
=0-2 ~ 2
Penalises repetition of frequent tokens
presence_penalty
number
=0-2 ~ 2
Encourages introducing new topics
stop
array—Up to 4 strings that stop generation
seed
integer—Deterministic sampling seed (best-effort)
n
integer
=1>= 1
Number of completions to generate
stream
boolean
=false
Stream tokens via Server-Sent Events
response_format
object—Force JSON object or schema-conforming output
tools
array—Tool / function declarations the model may call
tool_choice
string
autononerequired
Tool-choice policy or specific tool name
logprobs
boolean
=false
Return per-token log probabilities
top_logprobs
integer0 ~ 20Number of top log probabilities returned per token
logit_bias
object—Per-token logit bias map
user
string—End-user identifier for abuse monitoring

Rate limits

SupplierRPMTPMRPD
VolcengineUnlimitedUnlimitedUnlimited

No restriction

Frequently asked questions about doubao-seed-2-1-lite-260915

What is doubao-seed-2-1-lite-260915?

Compare doubao-seed-2-1-lite-260915 API pricing, supported endpoints, capabilities and access options on Modelsell.

How do I call doubao-seed-2-1-lite-260915?

Create an API key with access to doubao-seed-2-1-lite-260915, then use the exact model ID and a supported endpoint from the API access section. Request fields depend on the selected endpoint.

How is doubao-seed-2-1-lite-260915 priced?

Pricing depends on the selected provider group and the model billing unit. The current input, output, request, or media prices are shown on this page before sign-up.

What is the context window of doubao-seed-2-1-lite-260915?

The model catalog lists a context window of 1048576 tokens. Check the selected endpoint for request limits.

What is the maximum output of doubao-seed-2-1-lite-260915?

The model catalog lists a maximum output of 262144 tokens. Your request settings may set a lower limit.

How should I evaluate doubao-seed-2-1-lite-260915 for my project?

Start with the use cases and prompting guidance on this page, then evaluate the model with representative inputs from your project.