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Seed 2.1 Turbo vs GPT-5.2 Pro

Seed 2.1 Turbo costs 67.2x less per output token than GPT-5.2 Pro ($2.50 vs $168.00 per million). Updated October 23, 2026; no benchmark has tested both models yet.

Seed 2.1 TurboByteDance Seed
Coding
No data
Overall
No data
Output $/M
$2.50
GPT-5.2 ProOpenAI
Coding
No data
Overall
No data
Output $/M
$168.00
vs $2.50 vs $168.00 per 1M output tokens. Seed 2.1 Turbo is 67.2x cheaper.

Seed 2.1 Turbo or GPT-5.2 Pro: which to pick

Neither model has a coding score yet, so the two cannot be ranked on coding.

Pick Seed 2.1 Turbo for output tokens 67.2x cheaper ($2.50 vs $168.00 per million).

No benchmark has tested both yet. Seed 2.1 Turbo has none yet; GPT-5.2 Pro on Epoch Capabilities Index, ARC-AGI and ARC-AGI-2. Compare them on price and context instead.

Which one for your work

Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.

At a glance

Coding index
Seed 2.1 Turbo not benchmarked, GPT-5.2 Pro not benchmarked.
Widest category
None yet: no category has been tested on both models.
Widest single gap
None yet: no benchmark has tested both models.
Output price
Seed 2.1 Turbo $2.50 against GPT-5.2 Pro $168.00 per million output tokens, 67.2x apart.
Context window
Seed 2.1 Turbo takes 262K tokens, GPT-5.2 Pro 400K.

Benchmark by benchmark

Every board either model has a result on, a category to a fold; bars are each result on a 0 to 100 scale. Only one model is measured on each, so no row names a leader.

IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index1 board measured
Intelligence benchmarks for Seed 2.1 Turbo and GPT-5.2 Pro
BenchmarkSeed 2.1 TurboGPT-5.2 ProLeader
Epoch Capabilities IndexNot measured156.3Only GPT-5.2 Pro measured
Neither model has a result on the other 1 board here
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index4 boards measured
Reasoning benchmarks for Seed 2.1 Turbo and GPT-5.2 Pro
BenchmarkSeed 2.1 TurboGPT-5.2 ProLeader
ARC-AGINot measured90.5%Only GPT-5.2 Pro measured
ARC-AGI-2Not measured54.2%Only GPT-5.2 Pro measured
SimpleBenchNot measured57.4%Only GPT-5.2 Pro measured
Chess puzzlesNot measured60.0%Only GPT-5.2 Pro measured
Neither model has a result on the other 19 boards here
MathDirectional onlyPublic boards, shown as published, kept out of the index2 boards measured
Math benchmarks for Seed 2.1 Turbo and GPT-5.2 Pro
BenchmarkSeed 2.1 TurboGPT-5.2 ProLeader
FrontierMath, tiers 1 to 3Not measured74.0%Only GPT-5.2 Pro measured
FrontierMath, tier 4Not measured46.0%Only GPT-5.2 Pro measured
Neither model has a result on the other 12 boards here
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index2 boards measured
Knowledge benchmarks for Seed 2.1 Turbo and GPT-5.2 Pro
BenchmarkSeed 2.1 TurboGPT-5.2 ProLeader
PRBench FinanceNot measured46.3%Only GPT-5.2 Pro measured
PRBench LegalNot measured45.4%Only GPT-5.2 Pro measured
Neither model has a result on the other 18 boards here

What each workload costs

Three fixed token mixes at each model's listed price, so per-token rates become a bill.

Chat turn

1K input + 500 output tokens

Seed 2.1 Turbo$0.0018Fits in one request
GPT-5.2 Pro$0.105Fits in one request

Seed 2.1 Turbo costs less

Repository review

50K input + 3K output tokens

Seed 2.1 Turbo$0.033Fits in one request
GPT-5.2 Pro$1.55Fits in one request

Seed 2.1 Turbo costs less

Agent loop

200K input + 10K output tokens

Seed 2.1 Turbo$0.125Fits in one request
GPT-5.2 Pro$5.88Fits in one request

Seed 2.1 Turbo costs less

Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.

Specification differences

The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.

Specifications of Seed 2.1 Turbo and GPT-5.2 Pro
SpecificationByteDance Seed Seed 2.1 TurboOpenAI GPT-5.2 Pro
MakerByteDance SeedOpenAI
WeightsNo public weights listedNo public weights listed
ReleasedAugust 12, 2026December 10, 2025
Context window262K400K
Input $/Mtok$0.50$21.00
Output $/Mtok$2.50$168.00
Coding indexNot benchmarkedNot benchmarked
Independent measurements behind it00
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Seed 2.1 Turbo better than GPT-5.2 Pro for coding?

Neither model has a coding score yet, so the two cannot be ranked on coding. Pick Seed 2.1 Turbo for output tokens 67.2x cheaper ($2.50 vs $168.00 per million).

Which is cheaper, Seed 2.1 Turbo or GPT-5.2 Pro?

Seed 2.1 Turbo costs $0.50 per million input tokens and $2.50 per million output tokens; GPT-5.2 Pro costs $21.00 and $168.00. Cost per solved task is known for neither of them.

Which has the bigger context window, Seed 2.1 Turbo or GPT-5.2 Pro?

GPT-5.2 Pro, with 400K tokens against 262K.

Has any benchmark tested both Seed 2.1 Turbo and GPT-5.2 Pro?

No benchmark has tested both yet. Seed 2.1 Turbo has none yet; GPT-5.2 Pro on Epoch Capabilities Index, ARC-AGI and ARC-AGI-2. Compare them on price and context instead. Data as of October 23, 2026.

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