API cost decision in 10 seconds

Grok 4.20 vs Seed-2.0-Mini

Pick Seed-2.0-Mini for lower cost; pick Grok 4.20 only if the larger context window matters more.

Pricing data updated: 2026-05-26T11:08:00Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Seed-2.0-Mini for lower cost; pick Grok 4.20 only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Seed-2.0-Mini is estimated at $0.3 vs $2.5 for Grok 4.20, saving $2.2 (88% lower).

Cost-first pickSeed-2.0-Mini

Context-first pickGrok 4.20

Sample savings$2.288%

10x traffic gap$22

Grok 4.20 has more context, but Seed-2.0-Mini saves $2.2 on the standard workload. At 10x that traffic, the same price gap is about $22. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Seed-2.0-Mini stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shape	Token mix	Better pick	Grok 4.20	Seed-2.0-Mini
Input-heavy / RAG	5M input + 500K output	Seed-2.0-Mini	$7.5	$0.7
Balanced workload	1M input + 1M output	Seed-2.0-Mini	$3.75	$0.5
Output-heavy chatbot	1M input + 5M output	Seed-2.0-Mini	$13.75	$2.1

Cheaper input Seed-2.0-Mini $1.25 vs $0.1 / 1M

Seed-2.0-Mini is $1.15 cheaper per 1M input tokens (92% lower; 12.5x difference).

Cheaper output Seed-2.0-Mini $2.5 vs $0.4 / 1M

Seed-2.0-Mini is $2.1 cheaper per 1M output tokens (84% lower; 6.25x difference).

Larger context Grok 4.20 2M vs 262.14K

Grok 4.20 has 1.74M more context (7.63x larger).

Sample workload Seed-2.0-Mini $2.5 vs $0.3

Seed-2.0-Mini is $2.2 cheaper on the standard workload (88% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Grok 4.20 Calculating… Estimated API cost

Seed-2.0-Mini 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-2.0-Mini has the lower input price; Seed-2.0-Mini has the lower output price; Grok 4.20 offers the larger context window. For the 1M input plus 500K output sample, Seed-2.0-Mini is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $2.5 for Grok 4.20 and $0.3 for Seed-2.0-Mini.

Best Fit

Choose Grok 4.20 when you care most about larger context window.

Choose Seed-2.0-Mini when you care most about lower input-token price, and lower output-token price.

Decision Notes

On the standard 1M input plus 500K output workload, Seed-2.0-Mini is estimated at $0.3 vs $2.5 for Grok 4.20, saving $2.2 (88% lower).
Seed-2.0-Mini is $2.2 cheaper on the standard workload (88% lower).
Seed-2.0-Mini is $1.15 cheaper per 1M input tokens (92% lower; 12.5x difference).
Seed-2.0-Mini is $2.1 cheaper per 1M output tokens (84% lower; 6.25x difference).
Grok 4.20 has 1.74M more context (7.63x larger).

Head-to-Head Specs

Feature	Grok 4.20 (xAI)	Seed-2.0-Mini (ByteDance Seed)
Input Price prompt tokens per 1M	$1.25	$0.1
Completion Price per 1M tokens	$2.5	$0.4
Sample Workload Cost 1M input + 500K output	$2.5	$0.3
Context Window	2M	262.14K
Release Date	2026-03-31	2026-02-26

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	Seed-2.0-Mini	On the standard 1M input plus 500K output workload, Seed-2.0-Mini is estimated at $0.3 vs $2.5 for Grok 4.20, saving $2.2 (88% lower).
High-volume input processing	Seed-2.0-Mini	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	Seed-2.0-Mini	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	Grok 4.20	A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps

Grok Build 0.1 can replace Grok 4.20 when lower sample workload cost matters most: $2.
Seed 1.6 Flash can replace Seed-2.0-Mini when lower sample workload cost matters most: $0.22.

Larger context near this budget

Llama 4 Scout offers 10M context with $0.23 sample workload cost.

Popular competitors

No popular competitor is currently available.

Cheaper alternatives

Review low-cost models sorted by a standard 1M input plus 500K output workload.

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Larger context alternatives

Find models with larger context windows for RAG, long documents, and codebase review.

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Provider catalogs

Compare models within provider hubs before choosing a final API vendor.

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xAI catalog

Review all tracked xAI models before deciding whether this matchup is the right shortlist.

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ByteDance Seed catalog

Check other ByteDance Seed models with comparable pricing, context, or release timing.

Open ByteDance Seed models

Grok 4.20

Grok 4.20 is a reasoning model from xAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering...

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