API cost decision in 10 seconds

New🔥Ox Alpha vs Grok Build 0.1

Pick Ox Alpha when budget and context both matter.

Page updated: 2026-08-20T21:08:08Z Data confirmed: 2026-08-23T12:07:48Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Ox Alpha when budget and context both matter.

On the standard 1M input plus 500K output workload, Ox Alpha is estimated at $0 vs $2 for Grok Build 0.1, saving $2 (100% lower).

Cost-first pickOx Alpha

Context-first pickOx Alpha

Sample savings$2100%

10x traffic gap$20

Ox Alpha is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $20. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Ox Alpha stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shape	Token mix	Better pick	Ox Alpha	Grok Build 0.1
Input-heavy / RAG	5M input + 500K output	Ox Alpha	$0	$6
Balanced workload	1M input + 1M output	Ox Alpha	$0	$3
Output-heavy chatbot	1M input + 5M output	Ox Alpha	$0	$11

Cheaper input Ox Alpha $0 vs $1 / 1M

Ox Alpha is free for input tokens while Grok Build 0.1 costs $1 per 1M tokens.

Cheaper output Ox Alpha $0 vs $2 / 1M

Ox Alpha is free for output tokens while Grok Build 0.1 costs $2 per 1M tokens.

Larger context Ox Alpha 1.05M vs 256K

Ox Alpha has 792.58K more context (4.1x larger).

Sample workload Ox Alpha $0 vs $2

Ox Alpha is free for the standard workload while the other model is estimated at $2.

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Ox Alpha Calculating… Estimated API cost

Grok Build 0.1 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

Ox Alpha has the lower input price; Ox Alpha has the lower output price; Ox Alpha offers the larger context window. For the 1M input plus 500K output sample, Ox Alpha is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $0 for Ox Alpha and $2 for Grok Build 0.1.

Best Fit

Choose Ox Alpha when you care most about lower input-token price, lower output-token price, and larger context window.

Choose Grok Build 0.1 when its provider, model quality, latency, or availability is more important than the numeric price/context winner.

Decision Notes

On the standard 1M input plus 500K output workload, Ox Alpha is estimated at $0 vs $2 for Grok Build 0.1, saving $2 (100% lower).
Ox Alpha is free for the standard workload while the other model is estimated at $2.
Ox Alpha is free for input tokens while Grok Build 0.1 costs $1 per 1M tokens.
Ox Alpha is free for output tokens while Grok Build 0.1 costs $2 per 1M tokens.
Ox Alpha has 792.58K more context (4.1x larger).

Head-to-Head Specs

Feature	New🔥Ox Alpha (stealth)	Grok Build 0.1 (SpaceXAI)
Input Price prompt tokens per 1M	$0	$1
Completion Price per 1M tokens	$0	$2
Sample Workload Cost 1M input + 500K output	$0	$2
Context Window	1.05M	256K
Release Date	2026-08-20	2026-05-20
Popularity	#4

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	Ox Alpha	On the standard 1M input plus 500K output workload, Ox Alpha is estimated at $0 vs $2 for Grok Build 0.1, saving $2 (100% lower).
High-volume input processing	Ox Alpha	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	Ox Alpha	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	Ox Alpha	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

Grok 4.20 Multi-Agent offers 2M context with $2.5 sample workload cost.
Grok 4.20 offers 2M context with $2.5 sample workload cost.
DeepSeek V4 Flash 0731 offers 1.31M context with $0.17 sample workload cost.
DeepSeek V4 Flash Latest offers 1.31M context with $0.11 sample workload cost.

Popular competitors

DeepSeek V4 Flash 0731 · DeepSeek · #1
MiMo-V2.5 · Xiaomi · #2
Hy3 · Tencent · #3
DeepSeek V4 Flash 0423 · DeepSeek · #5

Cheaper alternatives

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

Open cheapest models

Larger context alternatives

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

Open largest context models

Provider catalogs

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

Open provider hubs

stealth catalog

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

Open stealth models

SpaceXAI catalog

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

Open SpaceXAI models

Ox Alpha

Ox Alpha is a reasoning model designed for coding, sustained agentic work, and production workloads. It is suited for long-horizon software engineering, complex reasoning, and workflows that combine text with...

Grok Build 0.1

Grok Build 0.1 is SpaceXAI’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...