Grok Build 0.1 API pricing

2 providers serve Grok Build 0.1. Grok Build 0.1 is a proprietary API model, up to 256K context. Prices below are per 1M tokens, cheapest input first.

Refreshed 2026-08-23 · list prices from provider APIs
Input floor $1.00/1M at xAI and OpenRouter Output floor $2.00/1M at xAI and OpenRouter Find your workload winner →
Provider Input $/1M Output $/1M Cache read $/1M Context
xAI $1.00 $2.00output floor $0.200 256K Use
OpenRouter marketplace quote $1.00 $2.00 $0.200 256K Use

The cheapest way to run Grok Build 0.1

On an illustrative 70M-input / 30M-output monthly workload, today's lowest listed cost is roughly $130/month — the same at xAI and OpenRouter. Input-heavy, output-heavy and cache-heavy workloads can produce different winners. Use the live mix calculator below rather than combining floors from two different providers. It is API-only, so the table above is your full set of options. Run your own numbers in the breakeven calculator, or read the breakeven math.

Your actual monthly cost

Uses today's list prices

Cache read uses the listed cache rate where available; otherwise it falls back to normal input price. Batch, write-cache, volume and negotiated discounts are excluded.

Related models

ModelCheapest in $/1MCheapest out $/1MProviders
Grok-4 $3.00 $15.00 6
Grok-3 $3.00 $15.00 4
Grok-3-Mini $0.250 $0.500 4
Grok 4.3 $1.25 $2.50 4
Grok-4-1-Fast-Non-Reasoning $0.200 $0.500 3
Grok-4-1-Fast-Reasoning $0.200 $0.500 3

FAQ

What is the cheapest API for Grok Build 0.1?

As of 2026-08-23, the lowest input price for Grok Build 0.1, $1.00 per 1M tokens, is the same list price at xAI and OpenRouter. The lowest output price, $2.00 per 1M tokens, is likewise shared by the same providers. The cheapest provider for a real workload depends on its input/output mix.

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