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Overage / Compare / LLM APIs

Cerebras Inference vs OpenAI API pricing

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

Monthly cost at three volumes

Monthly cost of Cerebras Inference and OpenAI API at three volumes and at your own
VolumeCerebras InferenceOpenAI API
small1M input, 200K output$0.50 / moGPT OSS 120B$0.20 / mogpt-6-luna
growing50M input, 10M output$25 / moGPT OSS 120B$10 / mogpt-6-luna
scale1B input, 200M output$500 / moGPT OSS 120B$200 / mogpt-6-luna
your volumeset above$25 / moGPT OSS 120B$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
Cerebras InferenceGPT OSS 120B$0.35$0.752
OpenAI APIgpt-6-luna$0.10$0.5011

Every model

Every model of both services, USD per 1M tokens
ModelServiceInputOutput
GPT OSS 120BCerebras Inference$0.35$0.75
Qwen 3.8 27BCerebras Inference$0.99$1.49
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 Cerebras Inference and OpenAI API aligned by position: free, entry, mid, top
PositionCerebras InferenceOpenAI API
Freeno tierno tier
EntryunlistedDeveloper*no tier
Midno tierno tier
TopContact salesEnterpriseno tier

Tightest rate limit

Tightest documented rate limit of each service
MeasureCerebras InferenceOpenAI API
Tightest limitunlistedunlisted

Changes in the last 90 days

No changes recorded.

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