GPT-4 Turbo API Pricing
OpenAI · Frontier · Proprietary · released 2024-04. Prices in USD per 1 million tokens. Data snapshot: 2026-09-28.
Deprecated. The vendor has announced retirement of this model's API · shutdown 2026-10-23 · suggested replacement: GPT-5.6 Sol. It still carries a price because resellers still serve it; treat it as a model to migrate off, not one to start on.
GPT-4 Turbo has held the same list price since 2026-08-15 and is the 20th cheapest of 31 Frontier models. Only one host, OpenAI, sells it, so there is no second price to shop. The vendor has announced its retirement, so it is a model to migrate off rather than start on.
- Input: $10.00 per 1M tokens
- Output: $30.00 per 1M tokens
- Batch API (input/output): $5.00 / $15.00
- Prompt-cache read: not published
- Context window: 128K
- Arena ELO: 1324 (as of 2026-09-25)
GPT-4 Turbo market position
On blended price ($24.00 per 1M tokens at 30% input, 70% output) it is cheaper than 37% of Frontier models: 20th cheapest of 31. Across every category it is cheaper than 4% of priced text models in the catalogue: 270th cheapest of 281. Its Arena ELO of 1324 ranks 61st of the 68 models that carry one, above 10% of them.
GPT-4 Turbo licence, size and capabilities
GPT-4 Turbo is recorded here as proprietary: access is through an API, priced by the token. Its parameter count is not published. Listed capabilities: Text, Vision, Code, Agents. Filling its 128K context window once costs $1.28 in input tokens at list price.
Monthly cost at 100K requests, by business use case
From the after-discounts figure (prompt caching on the cached input share, batch API for async workloads, only where the provider publishes those rates), which assumes you implement both, to the list price. One figure means no discount is published.
| Use case | Tokens (in/out) | Monthly (after discounts – list) |
|---|---|---|
| Support Ticket | 1,500 / 500 | $3.0K |
| Knowledge Q&A | 2,000 / 800 | $4.4K |
| Meeting Summary | 10,000 / 1,200 | $6.8K – $13.6K |
| Marketing Content | 2,500 / 1,800 | $7.9K |
| Coding Task | 3,000 / 2,000 | $9.0K |
| Invoice Processing | 1,500 / 600 | $1.6K – $3.3K |
| Call Summary | 2,000 / 700 | $2.0K – $4.1K |
| Agent Workflow | 6,000 / 3,000 | $15.0K |
GPT-4 Turbo pricing by host
A host is a company that runs the model and sells it by the token — the lab that made it, a cloud platform like Amazon Bedrock, Azure or Vertex, or an independent provider. One model, several sellers, and often several prices. This model is sold by 1 host. The price quoted above is the one we publish so that models stay comparable; it is not necessarily the cheapest way to buy this model. List prices as published on 2026-09-28 via OpenRouter — negotiated rates, committed-use discounts and provisioned capacity are not shown.
OpenAI is the only host with a published rate, $10.00 input / $30.00 output per 1M tokens, which is the price shown on this page.
| Host | Input $/1M | Output $/1M |
|---|---|---|
| OpenAI (the price shown above) | $10.00 | $30.00 |
GPT-4 Turbo price history
GPT-4 Turbo has been in our daily price archive since tracking began on 2026-08-15, when it listed at $10.00 input / $30.00 output per 1M tokens. No list price change since tracking began on 2026-08-15. Last checked against the 2026-09-28 snapshot.
Alternatives to GPT-4 Turbo
- Next cheaper Frontier model: GPT-5.5 (OpenAI) at $22.50 blended, 6% less.
- Next more expensive: Claude Fable 5 (Anthropic) at $38.00 blended, 58% more.
The nearest Frontier models on Arena ELO, each with its blended price and score difference against GPT-4 Turbo.
- Claude Sonnet 4 (Anthropic) — $3.00 in / $15.00 out per 1M, Arena ELO 1391: 52% cheaper, 67 ELO points higher
- o1 (OpenAI) — $15.00 in / $60.00 out per 1M, Arena ELO 1402: 94% more expensive, 78 ELO points higher
- Claude Sonnet 4.5 (Anthropic) — $3.00 in / $15.00 out per 1M, Arena ELO 1455: 52% cheaper, 131 ELO points higher
- GPT-5.4 (OpenAI) — $2.50 in / $15.00 out per 1M, Arena ELO 1465: 53% cheaper, 141 ELO points higher
- Cheapest within 15 Arena points: Llama 4 Scout (Meta), 99% cheaper, 2 ELO points lower, out of 6 models in that band.
- Highest Arena ELO within 20% of this price: GPT-5.5 (OpenAI), 6% cheaper, 153 ELO points higher, out of 2 models in that price band.
Common questions about GPT-4 Turbo pricing
- How much does GPT-4 Turbo cost?
- GPT-4 Turbo costs $10.00 per million input tokens and $30.00 per million output tokens on the API.
- Does GPT-4 Turbo offer batch or cached pricing?
- Yes. Batch API pricing is $5.00/M input and $15.00/M output.
- What would GPT-4 Turbo cost per month?
- For a support-ticket workload (1,500 input + 500 output tokens per request) at 100K requests/month, GPT-4 Turbo costs about $3.0K at list prices.
- Has the price of GPT-4 Turbo changed?
- GPT-4 Turbo has been in our daily price archive since tracking began on 2026-08-15, when it listed at $10.00 input / $30.00 output per 1M tokens. No list price change since tracking began on 2026-08-15. Last checked against the 2026-09-28 snapshot.
These are list prices: real cost also depends on caching, batching, negotiated discounts, marketplace agreements, and existing contracts. Get a FinOps review from OptimNow or compare all models.
Build the business case for GPT-4 Turbo in the AI ROI Calculator: add your business value on top of these costs to get ROI, break-even and payback.
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