ByteDance model product
Seed 2.1 Pro
ByteDance's flagship next-generation agent model built for real-world productivity.
Updated Aug 17, 2026. Default version: Seed 2.1 Pro
LLMBoard Score78.6Seed 2.1 Pro
Coverage80%53 benchmark families
Context window256KTokens
Official input priceN/AOfficial price unavailable
Seed 2.1 Pro Capability Profile
This profile uses the model's current scored version. Arena ratings and prices are shown separately.
Seed 2.1 Pro Benchmark Results
Benchmark scores for Seed 2.1 Pro.
Sort by
Benchmark | Score | Rank | Participants | Percentile | Evidence | Evaluated |
|---|
| BenchmarkAgent Startup Bench | Score68.8% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkArcAGI2 | Score62.5% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkArtifacts Bench | Score51.0% | Rank01 | Participants3 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkBLINK | Score81.4% | Rank01 | Participants15 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkChartQAPro | Score70.9% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkCharXiv-D | Score95.5% | Rank01 | Participants17 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkContPhy | Score63.6% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkCreativeWork | Score42.5% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkCrossVid | Score65.0% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkDoubao Multi-Turn Bench | Score52.5% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkEMMA | Score79.3% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkFinance Agent v1.1 | Score60.7% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkGameWorld | Score31.2% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkGDPval | Score87.9% | Rank01 | Participants3 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkImage2FloorPlan | Score48.0% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkIMOProof-Adv | Score54.3% | Rank01 | Participants1 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkKINA | Score48.3% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkLongVideoBench | Score80.6% | Rank01 | Participants4 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkMathVerse | Score89.7% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkMathVista | Score90.7% | Rank01 | Participants39 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkMeasureBench | Score62.9% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkMinerva | Score70.7% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkMMLongBench-128K | Score78.3% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkMMSIBench | Score35.9% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkMotionBench | Score74.9% | Rank01 | Participants3 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkMSQA | Score50.2% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkOfficeQA Pro | Score72.2% | Rank01 | Participants7 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkOneMillion Bench | Score68.8% | Rank01 | Participants3 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkOSWorld | Score78.8% | Rank01 | Participants20 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkOVBench | Score70.0% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkOVOBench | Score80.7% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkPresentBench | Score54.6% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkRepo Env | Score55.0% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkSciCode | Score59.8% | Rank01 | Participants21 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkSeedClawBench | Score66.6% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkSuperChem | Score59.8% | Rank01 | Participants3 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkSWE-Atlas | Score35.2% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkTOMATO | Score79.5% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkTrae Code Gen | Score62.4% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkTrae Error Fix | Score63.3% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkTreeBench | Score71.1% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkTVBench | Score80.5% | Rank01 | Participants3 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkVideoHolmes | Score68.2% | Rank01 | Participants3 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkVideo-MME | Score89.2% | Rank01 | Participants17 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkVideoSimpleQA | Score76.4% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkVisFactor | Score51.4% | Rank01 | Participants3 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkVisuLogic | Score0.543 points | Rank01 | Participants3 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkVLMsAreBiased | Score83.6% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkWeb Bench | Score78.4% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkWorldBench | Score67.6% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkxDailyBench | Score61.0% | Rank01 | Participants2 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkAetherCode | Score65.8% | Rank02 | Participants2 | Percentile0.0% | EvidenceC | Evaluated |
| BenchmarkBeyond AIME | Score87.0% | Rank02 | Participants5 | Percentile75.0% | EvidenceC | Evaluated |
| BenchmarkDUDE | Score82.8% | Rank02 | Participants2 | Percentile0.0% | EvidenceC | Evaluated |
| BenchmarkERQA | Score72.0% | Rank02 | Participants24 | Percentile95.7% | EvidenceC | Evaluated |
| BenchmarkFrontierCS | Score46.3% | Rank02 | Participants2 | Percentile0.0% | EvidenceC | Evaluated |
| BenchmarkFrontierScience Olympiad | Score75.0% | Rank02 | Participants3 | Percentile50.0% | EvidenceC | Evaluated |
| BenchmarkHorizonMath | Score2.0% | Rank02 | Participants3 | Percentile50.0% | EvidenceC | Evaluated |
| BenchmarkIMO 2025 | Score0.652 points | Rank02 | Participants2 | Percentile0.0% | EvidenceC | Evaluated |
| BenchmarkIPhO 2025 | Score79.3% | Rank02 | Participants2 | Percentile0.0% | EvidenceC | Evaluated |
| BenchmarkLiveMathematicianBench | Score20.9% | Rank02 | Participants2 | Percentile0.0% | EvidenceC | Evaluated |
| BenchmarkLiveSports-3K | Score76.8% | Rank02 | Participants2 | Percentile0.0% | EvidenceC | Evaluated |
| BenchmarkMobileWorld | Score73.1% | Rank02 | Participants3 | Percentile50.0% | EvidenceC | Evaluated |
| BenchmarkWildClawBench | Score61.7% | Rank02 | Participants5 | Percentile75.0% | EvidenceC | Evaluated |
| BenchmarkWorldVQA | Score53.0% | Rank02 | Participants5 | Percentile75.0% | EvidenceC | Evaluated |
| BenchmarkAPEX-Agents | Score33.8% | Rank03 | Participants8 | Percentile71.4% | EvidenceC | Evaluated |
| BenchmarkClawEval-MM | Score51.0% | Rank03 | Participants4 | Percentile33.3% | EvidenceC | Evaluated |
| BenchmarkFrontierScience Research | Score28.3% | Rank03 | Participants4 | Percentile33.3% | EvidenceC | Evaluated |
| BenchmarkLVBench | Score78.0% | Rank03 | Participants25 | Percentile91.7% | EvidenceC | Evaluated |
| BenchmarkMathVision | Score94.5% | Rank03 | Participants33 | Percentile93.8% | EvidenceC | Evaluated |
| BenchmarkMCP Atlas | Score83.8% | Rank03 | Participants33 | Percentile93.8% | EvidenceC | Evaluated |
| BenchmarkOCRBench_V2 | Score63.2% | Rank03 | Participants7 | Percentile66.7% | EvidenceC | Evaluated |
| BenchmarkRealWorldQA | Score86.7% | Rank03 | Participants29 | Percentile92.9% | EvidenceC | Evaluated |
| BenchmarkSimpleVQA | Score0.745 points | Rank03 | Participants14 | Percentile84.6% | EvidenceC | Evaluated |
| BenchmarkWorkspace Bench | Score53.0% | Rank03 | Participants3 | Percentile0.0% | EvidenceC | Evaluated |
| BenchmarkZEROBench | Score0.18 points | Rank03 | Participants9 | Percentile75.0% | EvidenceC | Evaluated |
| BenchmarkBabyVision | Score73.7% | Rank04 | Participants10 | Percentile66.7% | EvidenceC | Evaluated |
| BenchmarkMMMU-Pro | Score82.7% | Rank04 | Participants68 | Percentile95.5% | EvidenceC | Evaluated |
| BenchmarkProgram Bench | Score50.3% | Rank04 | Participants6 | Percentile40.0% | EvidenceC | Evaluated |
| BenchmarkSuperGPQA | Score70.8% | Rank04 | Participants34 | Percentile90.9% | EvidenceC | Evaluated |
| BenchmarkAgents' Last Exam | Score41.4% | Rank06 | Participants10 | Percentile44.4% | EvidenceC | Evaluated |
| BenchmarkDynaMath | Score73.1% | Rank06 | Participants7 | Percentile16.7% | EvidenceC | Evaluated |
| BenchmarkEmbSpatialBench | Score0.834 points | Rank06 | Participants8 | Percentile28.6% | EvidenceC | Evaluated |
| BenchmarkPostTrainBench | Score16.5% | Rank06 | Participants6 | Percentile0.0% | EvidenceC | Evaluated |
| BenchmarkMathArena Apex | Score31.3% | Rank07 | Participants8 | Percentile14.3% | EvidenceC | Evaluated |
| BenchmarkNL2Repo | Score47.0% | Rank07 | Participants17 | Percentile62.5% | EvidenceC | Evaluated |
| BenchmarkBrowseComp | Score86.2% | Rank08 | Participants62 | Percentile88.5% | EvidenceC | Evaluated |
| BenchmarkDeepSWE | Score32.7% | Rank09 | Participants11 | Percentile20.0% | EvidenceC | Evaluated |
| BenchmarkCyberGym | Score70.2% | Rank10 | Participants13 | Percentile25.0% | EvidenceC | Evaluated |
| BenchmarkCharXiv-R | Score86.4% | Rank12 | Participants51 | Percentile78.0% | EvidenceC | Evaluated |
| BenchmarkHumanity's Last Exam | Score55.7% | Rank12 | Participants99 | Percentile88.8% | EvidenceC | Evaluated |
| BenchmarkToolathlon | Score50.6% | Rank17 | Participants37 | Percentile55.6% | EvidenceC | Evaluated |
| BenchmarkTerminal-Bench 2.1 | Score71.0% | Rank18 | Participants28 | Percentile37.0% | EvidenceC | Evaluated |
| BenchmarkSWE-Bench Pro | Score57.5% | Rank24 | Participants50 | Percentile53.1% | EvidenceC | Evaluated |
Seed 2.1 Pro Arena Results
Preference and agent-evaluation results for the default version.
Sort by
Arena | Category | Rank | Rating / score | Votes | Observations | Result date |
|---|
| Arenawebdev | Categoryoverall | Rank25 | Rating / score1521.7 | Votes7,121 | ObservationsN/A | Result date |
Seed 2.1 Pro Pricing
Official vendor API pricing appears first, followed by individual provider offers.
- Official API
- N/A
- Official provider
- N/A
- Lowest third-party
- From $0.884 input, $4.42 output per 1M via Ofox
- Tracked offerings
- 1
Sort by
Provider | Provider model ID | Region | Input / 1M | Output / 1M | Context | Updated |
|---|
| ProviderOfox | Provider model IDvolcengine/doubao-seed-2.1-pro | Regionglobal | Input / 1M$0.884 | Output / 1M$4.42 | Context256K | Updated |
Official prices use only the vendor's configured official Provider and positive standard USD PAYG rates. Third-party offers remain explicitly labeled.
Seed 2.1 Pro Runtime Performance
Provider-specific output speed and catalog latency for Seed 2.1 Pro. Runtime does not affect the capability score.
No runtime data
Browse runtime rankingsNo provider-specific speed or latency record is linked to the default version yet.
Output Speed is generated output tokens received per second. Catalog latency is reported separately from observed provider TTFT.
Seed 2.1 Pro Specifications
Technical details for the model's default version.
- Version
- Seed 2.1 Pro
- Released
- Jun 24, 2026
- Knowledge cutoff
- Unknown
- Parameters
- N/A
- Context window
- 256K
- Max output
- 256K
- Inputs
- image, text, video
- Outputs
- text
- Open weights
- No
- License
- Proprietary
Seed 2.1 Pro Versions
Available versions of this model. The score column identifies the version used in the overall ranking.
Sort by
Version | Released | LLMBoard | Parameters | Context | Max output | Open weights | License |
|---|
| VersionSeed 2.1 Pro | Released | LLMBoard78.6 | ParametersN/A | Context256K | Max output256K | Open weightsNo | LicenseProprietary |
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What is Seed 2.1 Pro?
Key information about Seed 2.1 Pro and its available data.
ByteDance's flagship next-generation agent model built for real-world productivity. A deep-thinking model with strong demand understanding, long-horizon planning, and continuous self-repair, it delivers reliable end-to-end results across complex coding, long-chain agents, and multi-step engineering workflows.
1 Pro also advances knowledge, reasoning, and multimodal understanding, with SOTA results across several video understanding benchmarks. 1-pro.
Data as of 2026-08-17.
FAQ
Common questions about Seed 2.1 Pro.
When was Seed 2.1 Pro released?
Seed 2.1 Pro's default version was released on Jun 24, 2026.
How much does Seed 2.1 Pro cost?
No official standard PAYG price is currently available for Seed 2.1 Pro. The lowest tracked third-party offer starts at $0.884 input and $4.42 output via Ofox.
Who created Seed 2.1 Pro?
Seed 2.1 Pro was created by ByteDance.
What is the context window for Seed 2.1 Pro?
The default version has a 256K token context window.
Is Seed 2.1 Pro open weight?
No. The default version is not marked as having publicly available weights.
How many API providers offer Seed 2.1 Pro?
1 provider offerings are linked to the default version.
What models should I compare Seed 2.1 Pro with?
Nearby ranked alternatives include GLM 5.2, Claude Opus 4.6, Grok 4.6.