GPT-5
by OpenAIopenai/gpt-5
LLMCompare cannot run GPT-5 yet.No route to this model is configured on this site yet. Its prices and parameters are listed below for reference.
See the models that can be run nowGPT-5 at a glance
- Context length
- 400,000 tokens
- Maximum output
- 128,000 tokens
- Accepts
- Text, Image, File
- Returns
- Text
- Features
- ReasoningJSON outputTool callingPrompt cachingImage input
- Reasoning effort levels
highmediumlowminimalReasoning is always on for this model.- Released
- 7 Aug 2025
- Knowledge cutoff
- 30 September 2024
Model facts synced from the OpenRouter model list on 21 Oct 2026.
GPT-5 pricing by route
A route is the service LLMCompare calls to reach the model. GPT-5 has 1 route. Prices are in US dollars.
| Route | On LLMCompare | Inputper 1M tokens | Outputper 1M tokens | Cache readper 1M tokens | Price verified on | Source |
|---|---|---|---|---|---|---|
| OpenRouterDefault | Not configured | $1.25 | $10.00 | $0.125 | openrouter.ai/openai/gpt-5 |
The cost shown in an LLMCompare report is calculated from these prices as they were at the time of the run.
Cost calculator
Estimate what a batch of calls to GPT-5 costs. The starting numbers are examples. Change them to match your task.
Part of the input tokens above, billed at the cache read price.
Billed in addition to the output tokens.
- Cost per call
- $0.0063
- 8 credits
- Cost of 100 calls
- $0.625
- 800 credits
Calculated from the OpenRouter prices verified on 21 Oct 2026. Credits are the cost plus a 20% service fee, at $0.001 per credit, rounded up for each call, with a minimum of 1 per call. A real run is charged for the usage the provider reports.
Parameters you can set
These are the parameters LLMCompare can set when it calls the model through OpenRouter.
| Parameter | Type | Range or options | Default |
|---|---|---|---|
max_tokens | Integer | 1 to 128,000 | Provider default |
reasoning_effort | One of | highmediumlowminimal | medium |
seed | Integer | -2,147,483,648 to 4,294,967,295 | Provider default |
response_format | One of | textjson_object | Provider default |
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...
Description as published for this model. LLMCompare has not edited it.
Models to compare with GPT-5
Text models from the same provider and models at the nearest price. The order is not a ranking.
| Add to comparison | Model | Context | Max output | Input priceper 1M tokens | Output priceper 1M tokens | Features | Released | On LLMCompare |
|---|---|---|---|---|---|---|---|---|
GPT-5.1-Codex-MaxOpenAIopenai/gpt-5.1-codex-max | 400k | 128k | $1.25 | $10.00 | ReasoningJSONToolsCacheVision | No route yet | ||
GPT-5.1OpenAIopenai/gpt-5.1 | 400k | 128k | $1.25 | $10.00 | ReasoningJSONToolsCacheVision | No route yet | ||
GPT-5.1-CodexOpenAIopenai/gpt-5.1-codex | 400k | 128k | $1.25 | $10.00 | ReasoningJSONToolsCacheVision | No route yet | ||
Gemini 2.5 Pro Preview 06-05Googlegoogle/gemini-2.5-pro-preview | 1.05M | 65.5k | $1.25 | $10.00 | JSONToolsCacheVision | No route yet | ||
GLM 5.3 PrimeZ.aiz-ai/glm-5.3-prime | 1M | 131k | $2.80 | $8.80 | ReasoningJSONToolsCache | No route yet | ||
Gemini 4 ArgonGooglegoogle/gemini-4-argon | 1.05M | 944k | $2.00 | $10.00 | ReasoningJSONToolsCacheVision | No route yet |
Questions about GPT-5
- How much does GPT-5 cost?
- On the OpenRouter route, GPT-5 costs $1.25 per 1 million input tokens and $10.00 per 1 million output tokens, in US dollars. Input tokens that GPT-5 reads from the prompt cache cost $0.125 per 1 million tokens. LLMCompare verified this price on 21 Oct 2026.
- What is the context length of GPT-5?
- GPT-5 has a context length of 400,000 tokens and returns up to 128,000 output tokens in one call.
- What inputs does GPT-5 accept?
- GPT-5 accepts these inputs: Text, Image, File. GPT-5 returns: Text.
- Which reasoning effort levels does GPT-5 support?
- GPT-5 supports these reasoning effort levels: high, medium, low, minimal. Reasoning is always on for GPT-5 and cannot be turned off.
- Can I test GPT-5 on my own data?
- Not yet. LLMCompare lists the prices and parameters of GPT-5, but no route to GPT-5 is configured on LLMCompare, so it cannot be selected for an evaluation.