Free-offer comparison
Free AI Translation APIs
Text, document, and video translation may use different allowances. Check language support and whether API access is part of the free offer.
Guide updated Sep 19, 2026 · Offer review and source dates appear below · Methodology
Free-offer ranking
Each row describes the provider’s recorded free offer, which may cover a different product from the category shown here. The table keeps published units separate. “Not confirmed” means we lack evidence for that detail; it does not mean the provider requires a card.
Scroll horizontally to compare every column.
| Rank | Provider | Free-access score | Recorded free offer | Access pattern | Billing/card | Offer note | Full review | Official source |
|---|---|---|---|---|---|---|---|---|
| #1 | Gradium | 100/100 | 45K credits/mo | Recurring allowance | No card confirmed | Official product material restricts commercial use on the free tier. | Sep 19, 2026 | View pricingAccessed Sep 19, 2026 |
| #2 | AI Studios (DeepBrain) | 75/100 | Free videos: 3 videos per month; Generative credits: 16 credits total | Recurring allowance | Not confirmed | Each free video is limited to one minute. | Jul 17, 2026 | View pricingAccessed Sep 13, 2026 |
| #3 | HeyGen | 75/100 | 3 videos/mo | Recurring allowance | Not confirmed | Creator Free plan does not include API credits. | Jul 17, 2026 | View pricingAccessed Sep 13, 2026 |
| #4 | NLP Cloud | 65/100 | $15 credit | One-time balance | A credit card is required for the Pay-As-You-Go plan that includes the $15 credit. | The separate low-throughput Free plan does not require a card but does not carry the $15 Pay-As-You-Go credit. | Jul 17, 2026 | View pricingAccessed Sep 13, 2026 |
| #5 | DeepL API Developer | 60/100 | 1.0M characters | One-time balance | Not confirmed | The Developer allowance does not renew monthly and excludes speech translation. | Jul 17, 2026 | View support pageAccessed Sep 13, 2026 |
| #6 | Alibaba Cloud (Bailian) | 30/100 | Free tier | Free offer recorded | Not confirmed | Quota validity depends on activation date, region, and model scope. | Jul 17, 2026 | View documentationAccessed Sep 13, 2026 |
| #7 | D-ID | 30/100 | Free tier | Introductory offer | Not confirmed | Exact allowance requires an authenticated trial view. | Jul 17, 2026 | View pricingAccessed Sep 13, 2026 |
Why these providers appear in this order
We score each provider’s recorded free offer: up to 40 points for recurring or durable access, 20 for a confirmed no-card signup, 15 for a stated allowance, 15 for distinct evidence links, and 10 for documented terms. Missing details earn no points. Ties favor longer-lasting access, then more detailed records, then provider name. The score does not measure product quality or whether the free offer covers this category. Read the full method before treating it as a recommendation.
Which providers are included?
We include active directory records tagged for AI translation APIs. A tag describes a provider’s capability; its recorded free offer may cover only part of that provider’s catalog. Check the model or endpoint in the provider’s terms before building on the allowance.
See the full AI translation APIs category, including records excluded from this guide.