GPT 4 Turbo API Pricing
GPT 4 Turbo has tracked API rates of $10.00 per 1M input tokens and $30.00 per 1M output tokens. Rates are in USD from the AI IQ dataset; see the GPT 4 Turbo model profile for capability scores.
Price List
| Rate | Price (USD) | Notes |
|---|---|---|
| Input | $10.00 | per 1M tokens |
| Output | $30.00 | per 1M tokens |
| Blended input + output | $40.00 | 1M in + 1M out at list price |
Pricing References and Billing Caveats
These are the tracked rates, not a live quote. Hosted-provider choice, region, long-context tiers, caching, batch discounts, and temporary promotions can change the actual bill. Open-weight availability does not mean hosted inference is free. Workload examples assume the listed standard input and output rates, with no cache hits or discounts.
OpenAI pricing catalog — check current offerings and rate tiers. This catalog may not list historical models or third-party hosted endpoints.
No model-specific official reference is recorded for this entry. Confirm the current rates directly with your inference provider.
What a Workload Costs
Computed straight from the list prices above — token counts are illustrative workload sizes, not measurements of GPT 4 Turbo.
| Workload | Cost | Tokens |
|---|---|---|
| Short chat turn | $0.025 | 1K in / 500 out |
| Summarize a long document | $1.06 | 100K in / 2K out |
| Agentic coding session | $8.00 | 500K in / 100K out |
| 1M input + 1M output tokens | $40.00 | 1M in / 1M out |
Effective Cost
In AI IQ's scoring, GPT 4 Turbo's list price is adjusted by a token-usage multiplier of 1.257, giving an effective cost of $50.28 per 1M input + output tokens. That places it #141 of 149 models on the effective-cost ranking (lower is cheaper). Some models spend far more tokens than others on the same task, so effective cost compares what a unit of work really costs. Method details are on the methodology page; see all models on the cost charts and the falling cost of intelligence over time.
Cheaper Alternatives at Similar Capability
Models with a lower effective cost that score within a few IQ points of GPT 4 Turbo (IQ 79), or better.
| Model | Provider | IQ | Effective Cost / 1M |
|---|---|---|---|
| gpt-6.1-sol | OpenAI | 142 | $6.20 |
| opus-5.5 | Anthropic | 142 | $35.08 |
| gpt-6-astra | OpenAI | 140 | $33.53 |
| gpt-6-sol | OpenAI | 138 | $9.68 |
| opus-5 | Anthropic | 136 | $44.19 |
| gpt-5.6-sol | OpenAI | 134 | $26.98 |