OpenAI · Released Oct 6, 2025GPT-5 Pro
Higher-accuracy GPT-5 tier for tough analysis, coding reviews, and planning.
- Capability
- 150.3ECI · #46 of 148
- Input
- $15.00per 1M tokens
- Output
- $120.00per 1M tokens
- Context
- 400K272K max output
What it costs
- Input
- $15.00per million tokens
- Output
- $120.00per million tokens
- Blended (3:1)
- $41.25pricier than 99% of priced models
Typical monthly bills
| Monthly usage | Estimated cost |
|---|---|
| Side project2M input + 0.5M output tokens | $90.00 |
| Team assistant25M input + 5M output tokens | $975.00 |
| Production app250M input + 50M output tokens | $9,750 |
Official OpenAI API price, as listed on models.dev.
Independent benchmarks
#46 of 148 scored models
The shaded band is Epoch AI’s confidence range (148.5–152.8); the tick marks the median scored model.
Scores from Epoch AI, run independently of OpenAI.
The details
- Lab
- OpenAI
- Released
- Oct 6, 2025
- Knowledge cutoff
- Sep 30, 2024
- Context window
- 400,000 tokens
- Max output
- 272,000 tokens
- Inputs
- Text, Images
- Output
- Text
- Reasoning
- Adjustable effort high
- Tool calling
- Yes
- Structured output
- Yes
- Weights
- Proprietary
- API model ID
gpt-5-proon OpenAI- Availability
- 12 API providerslisted on models.dev
More from OpenAI
About GPT-5 Pro
How much does GPT-5 Pro cost?
GPT-5 Pro costs $15.00 input / $120.00 output per million tokens (official OpenAI API price). At a 3:1 input-to-output mix that is $41.25 per million tokens, more expensive than 99% of the 360 priced models we track.
What is the context window of GPT-5 Pro?
GPT-5 Pro accepts up to 400,000 tokens per request and can write up to 272,000 tokens in one response.
How good is GPT-5 Pro?
Epoch AI gives GPT-5 Pro a Capabilities Index score of 150.3 (likely range 148.5–152.8), ranking it #46 of 148 models Epoch has scored. Epoch AI benchmark results: FrontierMath Tiers 1–3 55.8%.
Is GPT-5 Pro open source?
No. GPT-5 Pro is proprietary; you use it through OpenAI’s API or partner platforms.
What inputs does GPT-5 Pro support?
GPT-5 Pro accepts text and images and replies in text. It is a reasoning model with high effort settings, supports tool calling and can return structured JSON output.
When was GPT-5 Pro released?
OpenAI released GPT-5 Pro on Oct 6, 2025. Its training data runs to Sep 30, 2024.
What are the best alternatives to GPT-5 Pro?
The closest current models from other labs on capability, price and release date are Claude Opus 4.5 (Anthropic, ECI 150.1, $5.00 / $25.00), Gemini 3 Pro Preview (Google, ECI 153.0, $2.00 / $12.00), Inkling (Thinking Machines, ECI 148.6, $3.74 / $9.36) and Qwen3.6 Max Preview (Alibaba (Qwen), ECI 149.2, $1.30 / $7.80).