Grok 3 mini vs Grok 4
Grok 3 mini is cheaper than Grok 4 by about 92% on a blended (75% input / 25% output) basis. Grok 3 mini charges $0.25 / $1.27 per 1M input/output tokens; Grok 4 charges $3.00 / $15.00.
| Field | Grok 3 mini | Grok 4 |
|---|---|---|
| Input $/Mtok | $0.25 | $3.00 |
| Output $/Mtok | $1.27 | $15.00 |
| Cache read $/Mtok | – | – |
| Cache write $/Mtok | – | – |
| Input $/Mchar | n/a | n/a |
| Output $/Mchar | n/a | n/a |
| Context window | 131072 | 256000 |
| Tokenizer | – | – |
| Confidence? | aggregator | aggregator |
| Source | litellm | litellm |
Confidence: official = vendor pricing page · api = OpenRouter per-host · aggregator = community list, may lag · unreviewed = automatic extraction awaiting review. When sources disagree the most authoritative wins. Details: /methodology#confidence
Price history
Same workload, monthly cost
Illustrative monthly cost at 10M tokens/month, split per workload preset. Not a substitute for the calculator, which uses your own volume, cache and batch assumptions.
| Workload | Grok 3 mini | Grok 4 |
|---|---|---|
| Coding agent | $3.01 | $36.00 |
| RAG chat | $4.03 | $48.00 |
| Summarisation (batch) | $3.52 | $42.00 |
| Classification | $2.70 | $32.40 |
| Chat assistant | $6.58 | $78.00 |
| Content generation | $10.66 | $126.00 |
Cite this page
Grok 3 mini vs Grok 4: $0.25/$1.27 vs $3.00/$15.00 per 1M tokens as of 2026-10-04. Token Barometer by Dejan Strbad, https://tokenbarometer.com, data CC BY 4.0. https://tokenbarometer.com/compare/xai_grok-3-mini-vs-xai_grok-4-0709