ByteDance · small open-weight · Released 2025-10-16

Seed-OSS 7B: pricing, context window and benchmarks

Seed-OSS 7B is a small open-weight model from ByteDance. It offers a 8,192-token context window, costs $0.85 per million input tokens and $3.81 per million output tokens, and averages 55.5 across the index's benchmark suite.

open weightssmall
Input price
$0.85
per 1M tokens
Output price
$3.81
per 1M tokens
Context
8,192
tokens
Avg score
55.5
rank #515 of 600
Arena Elo
1239.5
modelled
Max output
4,096
tokens

Pricing

Seed-OSS 7B costs $0.85 per million input tokens and $3.81 per million output tokens. A blended 3:1 input-to-output mix works out to about $1.59 per million tokens. Cached input is listed at $0.10 per million tokens.

ItemPriceNotes
Input$0.85per 1M tokens
Output$3.81per 1M tokens
Cached input$0.10per 1M tokens
Blended 3:1$1.59estimate per 1M tokens
1M in + 1M out$4.66estimate

Benchmarks

Scores below are modelled estimates on a 0–100 scale. Use them to compare relative position, not as official vendor results.

BenchmarkScoreRankPercentileRelative
MMLU-Pro 61.1 512 15th
GPQA Diamond 51.7 504 16th
SWE-bench Verified 43.6 484 19th
HumanEval 59.9 506 16th
MATH-500 54.4 525 13th
AIME 2025 43.1 522 13th
LiveCodeBench 44.8 501 17th
IFEval 65.3 529 12th
TruthfulQA 61.9 508 15th
HellaSwag 72.4 489 19th
MMMU 51.8 534 11th
Arena Elo 1239.5 515 14th

What Seed-OSS 7B is good for

Seed-OSS 7B is a small model. That makes it a good fit for classification, extraction, routing, summarization and other high-volume jobs where latency and cost dominate. It is not the right pick for open-ended frontier reasoning, but at $0.85 per million input tokens it can handle a large share of production traffic.

Strengths

  • Input price of $0.85 per million tokens is at or below the index median.
  • Open weights make self-hosting, fine-tuning and data-residency review possible.

Trade-offs

  • Context window of 8,192 tokens is small for long-document work.
  • Average benchmark score is below the index median; test it on your own task.
  • Less reliable on open-ended reasoning and complex multi-step instructions.

How it compares

ModelProviderContextInput / 1MAvg score
Firesearch Nano Fireworks AI 8192 $2.49 55.6
Llama 3 DeepInfra 7B DeepInfra 16384 $0.95 55.6
Llama 3 Hyperbolic 7B Hyperbolic 4096 $0.94 55.6
Llama 3 Novita 8B Novita AI 16384 $0.99 55.5
Seed-OSS 7B ByteDance 8192 $0.85 55.5
Mistral Large 3 1.5B Mistral AI 32768 $0.82 55.4

Browse all comparisons →

FAQ

How much does Seed-OSS 7B cost?

Seed-OSS 7B is listed at $0.85 per million input tokens and $3.81 per million output tokens. Cached input is $0.10 per million tokens. A blended 3:1 input-to-output mix is about $1.59 per million tokens.

What is the context window of Seed-OSS 7B?

Seed-OSS 7B has a context window of 8,192 tokens and can emit up to 4,096 output tokens per request in this index.

Is Seed-OSS 7B open weights?

Yes. Seed-OSS 7B is listed as an open-weight model under a open weights licence.

How does Seed-OSS 7B score on benchmarks?

Seed-OSS 7B averages 55.5 across the scored benchmarks in this index, ranking #515 of 600 models. Its strongest relative result is Arena Elo at 1239.5.

What is Seed-OSS 7B best for?

Seed-OSS 7B is a small model. That makes it a good fit for classification, extraction, routing, summarization and other high-volume jobs where latency and cost dominate. It is not the right pick for open-ended frontier reasoning, but at $0.85 per million input tokens it can handle a large share of production traffic.

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