API cost decision in 10 seconds

NewGrok Build 0.1 vs Solar Pro 3

Pick Solar Pro 3 for lower cost; pick Grok Build 0.1 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 Solar Pro 3 for lower cost; pick Grok Build 0.1 only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Solar Pro 3 is estimated at $0.45 vs $2 for Grok Build 0.1, saving $1.55 (77.5% lower).

Cost-first pickSolar Pro 3

Context-first pickGrok Build 0.1

Sample savings$1.5577.5%

10x traffic gap$15.5

Grok Build 0.1 has more context, but Solar Pro 3 saves $1.55 on the standard workload. At 10x that traffic, the same price gap is about $15.5. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Solar Pro 3 stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shape	Token mix	Better pick	Grok Build 0.1	Solar Pro 3
Input-heavy / RAG	5M input + 500K output	Solar Pro 3	$6	$1.05
Balanced workload	1M input + 1M output	Solar Pro 3	$3	$0.75
Output-heavy chatbot	1M input + 5M output	Solar Pro 3	$11	$3.15

Cheaper input Solar Pro 3 $1 vs $0.15 / 1M

Solar Pro 3 is $0.85 cheaper per 1M input tokens (85% lower; 6.67x difference).

Cheaper output Solar Pro 3 $2 vs $0.6 / 1M

Solar Pro 3 is $1.4 cheaper per 1M output tokens (70% lower; 3.33x difference).

Larger context Grok Build 0.1 256K vs 128K

Grok Build 0.1 has 128K more context (2x larger).

Sample workload Solar Pro 3 $2 vs $0.45

Solar Pro 3 is $1.55 cheaper on the standard workload (77.5% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Grok Build 0.1 Calculating… Estimated API cost

Solar Pro 3 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

Solar Pro 3 has the lower input price; Solar Pro 3 has the lower output price; Grok Build 0.1 offers the larger context window. For the 1M input plus 500K output sample, Solar Pro 3 is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $2 for Grok Build 0.1 and $0.45 for Solar Pro 3.

Best Fit

Choose Grok Build 0.1 when you care most about larger context window.

Choose Solar Pro 3 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, Solar Pro 3 is estimated at $0.45 vs $2 for Grok Build 0.1, saving $1.55 (77.5% lower).
Solar Pro 3 is $1.55 cheaper on the standard workload (77.5% lower).
Solar Pro 3 is $0.85 cheaper per 1M input tokens (85% lower; 6.67x difference).
Solar Pro 3 is $1.4 cheaper per 1M output tokens (70% lower; 3.33x difference).
Grok Build 0.1 has 128K more context (2x larger).

Head-to-Head Specs

Feature	NewGrok Build 0.1 (xAI)	Solar Pro 3 (Upstage)
Input Price prompt tokens per 1M	$1	$0.15
Completion Price per 1M tokens	$2	$0.6
Sample Workload Cost 1M input + 500K output	$2	$0.45
Context Window	256K	128K
Release Date	2026-05-20	2026-01-27

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	Solar Pro 3	On the standard 1M input plus 500K output workload, Solar Pro 3 is estimated at $0.45 vs $2 for Grok Build 0.1, saving $1.55 (77.5% lower).
High-volume input processing	Solar Pro 3	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	Solar Pro 3	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	Grok Build 0.1	A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps

No lower-cost same-provider swap is currently tracked for this pair.

Larger context near this budget

Llama 4 Scout offers 10M context with $0.23 sample workload cost.
Grok 4.20 offers 2M context with $2.5 sample workload cost.
Owl Alpha offers 1.05M context with $0 sample workload cost.
Gemini 3.1 Flash Lite offers 1.05M context with $1 sample workload cost.

Popular competitors

No popular competitor is currently available.

Cheaper alternatives

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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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Upstage catalog

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

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Grok Build 0.1

Grok Build 0.1 is xAI’s fast coding model trained specifically for agentic software engineering workflows. It supports text and image inputs with text output, and is optimized for interactive coding...

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