API cost decision in 10 seconds

Seed 1.6 vs GPT-5.2

Pick Seed 1.6 for lower cost; pick GPT-5.2 only if the larger context window matters more.

Page updated: 2026-05-26T10:03:26Z Data confirmed: 2026-05-26T13:08:02Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Seed 1.6 for lower cost; pick GPT-5.2 only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Seed 1.6 is estimated at $1.25 vs $8.75 for GPT-5.2, saving $7.5 (85.7% lower).

Cost-first pickSeed 1.6

Context-first pickGPT-5.2

Sample savings$7.585.7%

10x traffic gap$75

GPT-5.2 has more context, but Seed 1.6 saves $7.5 on the standard workload. At 10x that traffic, the same price gap is about $75. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Seed 1.6 stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shape	Token mix	Better pick	Seed 1.6	GPT-5.2
Input-heavy / RAG	5M input + 500K output	Seed 1.6	$2.25	$15.75
Balanced workload	1M input + 1M output	Seed 1.6	$2.25	$15.75
Output-heavy chatbot	1M input + 5M output	Seed 1.6	$10.25	$71.75

Cheaper input Seed 1.6 $0.25 vs $1.75 / 1M

Seed 1.6 is $1.5 cheaper per 1M input tokens (85.7% lower; 7x difference).

Cheaper output Seed 1.6 $2 vs $14 / 1M

Seed 1.6 is $12 cheaper per 1M output tokens (85.7% lower; 7x difference).

Larger context GPT-5.2 262.14K vs 400K

GPT-5.2 has 137.86K more context (1.53x larger).

Sample workload Seed 1.6 $1.25 vs $8.75

Seed 1.6 is $7.5 cheaper on the standard workload (85.7% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Seed 1.6 Calculating… Estimated API cost

GPT-5.2 Calculating… Estimated API cost

Cheaper for this workload Calculating… Difference: calculating…

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Quick Decision

Verdict

Seed 1.6 has the lower input price; Seed 1.6 has the lower output price; GPT-5.2 offers the larger context window. For the 1M input plus 500K output sample, Seed 1.6 is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $1.25 for Seed 1.6 and $8.75 for GPT-5.2.

Best Fit

Choose Seed 1.6 when you care most about lower input-token price, and lower output-token price.

Choose GPT-5.2 when you care most about larger context window.

Decision Notes

On the standard 1M input plus 500K output workload, Seed 1.6 is estimated at $1.25 vs $8.75 for GPT-5.2, saving $7.5 (85.7% lower).
Seed 1.6 is $7.5 cheaper on the standard workload (85.7% lower).
Seed 1.6 is $1.5 cheaper per 1M input tokens (85.7% lower; 7x difference).
Seed 1.6 is $12 cheaper per 1M output tokens (85.7% lower; 7x difference).
GPT-5.2 has 137.86K more context (1.53x larger).

Head-to-Head Specs

Feature	Seed 1.6 (ByteDance Seed)	GPT-5.2 (OpenAI)
Input Price prompt tokens per 1M	$0.25	$1.75
Completion Price per 1M tokens	$2	$14
Sample Workload Cost 1M input + 500K output	$1.25	$8.75
Context Window	262.14K	400K
Release Date	2025-12-23	2025-12-10

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	Seed 1.6	On the standard 1M input plus 500K output workload, Seed 1.6 is estimated at $1.25 vs $8.75 for GPT-5.2, saving $7.5 (85.7% lower).
High-volume input processing	Seed 1.6	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	Seed 1.6	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	GPT-5.2	A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps

Seed 1.6 Flash can replace Seed 1.6 when lower sample workload cost matters most: $0.22.
Seed-2.0-Mini can replace Seed 1.6 when lower sample workload cost matters most: $0.3.
gpt-oss-120b (free) can replace GPT-5.2 when lower sample workload cost matters most: $0.
gpt-oss-20b (free) can replace GPT-5.2 when lower sample workload cost matters most: $0.

Larger context near this budget

Llama 4 Scout offers 10M context with $0.23 sample workload cost.
Grok 4.20 Multi-Agent offers 2M context with $5 sample workload cost.
Grok 4.20 offers 2M context with $2.5 sample workload cost.
GPT-5.4 offers 1.05M context with $10 sample workload cost.

Popular competitors

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Cheaper alternatives

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Larger context alternatives

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Provider catalogs

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ByteDance Seed catalog

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OpenAI catalog

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Seed 1.6

Seed 1.6 is a general-purpose model released by the ByteDance Seed team. It incorporates multimodal capabilities and adaptive deep thinking with a 256K context window.

GPT-5.2

GPT-5.2 is the latest frontier-grade model in the GPT-5 series, offering stronger agentic and long context perfomance compared to GPT-5.1. It uses adaptive reasoning to allocate computation dynamically, responding quickly...