OpenAI: GPT-5
by OpenAIOpenAI: GPT-5 is a large language model from OpenAI. It costs $1.25 per million input tokens and $10.00 per million output tokens. Its context window is 400K tokens.
- Input / 1M tokens
- $1.25
- Output / 1M tokens
- $10.00
- Cached input / 1M
- $0.125
- Context window
- 400K
On repeated prefixes
tokens
This model also charges $0.01 per search request
That is $10.00 per 1,000 requests, billed on top of the token prices above. On a typical 1,000-in / 500-out exchange the tokens cost $0.0063, so the search fee is 1.6× the token cost. Per-token rankings elsewhere ignore this entirely.
Who serves it cheapest
2 hosts serve GPT-5. Same weights, same API - the price difference is pure margin and routing.
| Provider | Input / 1M | Output / 1M | Context | Throughput | Uptime 24h |
|---|---|---|---|---|---|
| AzureCheapest | $1.25 | $10.00 | 400K | - | 100.0% |
| OpenAI | $1.25 | $10.00 | 400K | - | 99.9% |
The spread between Azure and OpenAI is about the same for identical weights. Quantization and context limits differ, so check both columns before switching.
Benchmarks
Independent scores published alongside the catalogue.
- Coding index
- 37.8
About GPT-5
GPT-5 is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It is optimized for complex tasks that require step-by-step reasoning, instruction following, and accuracy...
Specifications
| Model ID | openai/gpt-5 |
|---|---|
| Provider | OpenAI |
| Context window | 400K tokens |
| Max output | 128K tokens |
| Input modalities | text, image, file |
| Output modalities | text |
| Knowledge cutoff | 2024-09-30 |
| Open weights | No |
| Released | August 7, 2025 |
Cheaper alternatives
Models that cost less than GPT-5 while keeping at least half its context window and every input modality it supports.
Frequently asked
How much does OpenAI: GPT-5 cost?
$1.25 per million input tokens and $10.00 per million output tokens. Cached input reads cost $0.125 per million tokens.
What is the context window of OpenAI: GPT-5?
400K tokens, with up to 128K tokens of output per request.
Does OpenAI: GPT-5 have extra fees beyond per-token pricing?
Yes. OpenAI: GPT-5 charges $0.01 per search request - $10.00 per 1,000 requests - on top of $1.25 per million input tokens and $10.00 per million output tokens. On a typical 1,000-input / 500-output exchange the search fee alone is 1.6× the token cost.
Which provider serves OpenAI: GPT-5 cheapest?
Azure at $1.25 per million input tokens - about the same cheaper than OpenAI, the most expensive of the 2 hosts serving it.
Confirm against the source: OpenAI official pricing.