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Overage / Compare / LLM APIs

AI21 Labs vs OpenAI API pricing

Verified 2026-10-23 (2 days ago)Source: AI21 Labs: www.ai21.com/pricing, OpenAI API: developers.openai.com/api/docs/pricingVerified shows the older of the two.

Monthly cost at three volumes

Monthly cost of AI21 Labs and OpenAI API at three volumes and at your own
VolumeAI21 LabsOpenAI API
small1M input, 200K output$0.28 / moJamba Mini$0.20 / mogpt-6-luna
growing50M input, 10M output$14 / moJamba Mini$10 / mogpt-6-luna
scale1B input, 200M output$280 / moJamba Mini$200 / mogpt-6-luna
your volumeset above$14 / moJamba Mini$10 / mogpt-6-luna

Each cell is the cheapest feasible plan, or the chosen model, at that volume, from the shared Overage cost function. "Cheapest model" only considers models with both an input and an output price listed. Volumes are example scenarios you can edit.

Cheapest model per service, USD per 1M tokens

Cheapest priced model of each service
ServiceCheapest modelInputOutputModels listed
AI21 LabsJamba Mini$0.20$0.402
OpenAI APIgpt-6-luna$0.10$0.5011

Every model

Every model of both services, USD per 1M tokens
ModelServiceInputOutput
Jamba MiniAI21 Labs$0.20$0.40
Jamba LargeAI21 Labs$2$8
gpt-6-lunaOpenAI API$0.10$0.50
gpt-4o-mini-transcribeOpenAI API$1.25$5
gpt-5.3-codexOpenAI API$1.75$14
gpt-6.1-solOpenAI API$2$10
gpt-4o-transcribeOpenAI API$2.50$10
gpt-5.6-solOpenAI API$4$20
gpt-rosalind-researchOpenAI API$5$25
gpt-rosalind-discoveryOpenAI API$5$25
chat-latestOpenAI API$5$30
gpt-6-astraOpenAI API$10$50
gpt-5.6-cyberOpenAI API$12.50$75

Models are compared by name and price, never by position. Pick one model per service, or "Cheapest model", in the cost table above.

Tiers, aligned by position

Tiers of AI21 Labs and OpenAI API aligned by position: free, entry, mid, top
PositionAI21 LabsOpenAI API
Free$0 onceFree Trialno tier
EntryunlistedPay As You Gono tier
Midno tierno tier
TopContact salesCustom Planno tier

Tightest rate limit

Tightest documented rate limit of each service
MeasureAI21 LabsOpenAI API
Tightest limitunlistedunlisted

Changes in the last 90 days

No changes recorded.

No change detected for either service in the last 90 days.