GPT-5 Pro
Oct 2025
GPT-5 ProCompare inon
GPT-5 Pro measured on 6 of 104 Chat & Knowledge benchmarks6
BenchmarkByScoreRank
Reasoning4
Math2Leads on 1
No benchmark matches
Alternatives?
ModelScoreCostPer taskWhat changes
CheaperGPT-6 Astramax×5.2-52%$3.26Monitoring can return HTTP 403+2BetterGPT-6 Lunahigh+71%-100%$0.029Function calling only with none · Chat Completions+3
OpenGLM 5.3 Flashmax×3.6-99%$0.28Defaults to max · Self-hosted+4CheaperGPT-6.1 Solmax×5.1-90%$0.72Remove unsupported parameters+5
CheaperClaude Opus 5.5high×5.1-81%$1.82No forced tool use+5ModelScoreCostPer taskWhat changes
GPT-6 Astramax×5.2-52%$3.26Monitoring can return HTTP 403+2GPT-6.1 Solmax×5.1-90%$0.72Remove unsupported parameters+5Claude Opus 5.5high×5.1-81%$1.82No forced tool use+5GPT-5.6 Solmax×5-81%$1.99
Gemini 4 Argonhigh×5-90%*$1.99Synchronous output stops at 65,536+2ModelScoreCostPer taskWhat changes
GPT-6 Lunahigh+71%-100%$0.029Function calling only with none · Chat Completions+3GPT-5.6 Lunahigh+60%-99%$0.044Claude Haiku 5.5high+67%-100%$0.079Remove sampling parameters+5GPT-6.1 Sollow×4.2-90%$0.13Remove unsupported parameters+5GPT-6 Sollow+72%-90%$0.13ModelScoreCostPer taskWhat changes
GLM 5.3 FlashmaxOpen×3.6-99%$0.28Defaults to max · Self-hosted+4
DeepSeek V4 Pro 0813maxOpen×3.3-95%$0.67No image input+5
Kimi K3maxOpen×3.3-85%$2.00Sampling parameters are fixed+3
Qwen3.8 27BxhighOpen×2.3-98%$1.01Context: 400K → 262K+5TInkling SmallxhighOpen×2.2-98%$0.45 / $1.20Context: 400K → 256K+1ModelScoreCostPer taskWhat changes
GPT-6 Astramedium×5—$1.54Monitoring can return HTTP 403+2GPT-6.1 Solmedium×4.7—$0.21Remove unsupported parameters+5GPT-5.5 Prohigh×4.6—$30 / $180GPT-5.4 Proxhigh×4.5—$30 / $180No strict JSONGPT-5.4xhigh×4—$2.50 / $15GPT-5.5medium×3.8—$0.90Prompts with >272K input tokensGPT-5.6 Solmedium×3.7—$0.50GPT-6 Solmedium×3.2—$0.25All OpenAI models →History
6 versionsFAQ
How much does GPT-5 Pro cost?›
$15 per 1M input tokens and $120 per 1M output tokens.
Is GPT-5 Pro free to use?›
There is no free API; the cheapest paid price is $15 per 1M input tokens.
How good is GPT-5 Pro, and what is it best at?›
#41 of 66 in Chat & Knowledge.
Is GPT-5 Pro better than GPT-5.4 Mini?›
On ARC-AGI-2 · semi-private, GPT-5 Pro scores 18.3 vs 18.9 — about the same.
How can I use GPT-5 Pro?›
Through the API of OpenAI.
What is the context window of GPT-5 Pro?›
400K tokens, with up to 128K output tokens.
When was GPT-5 Pro released? Is there a newer version?›
Released 2025-10-06. It is the current version in its line.
Is GPT-5 Pro open source?›
No, GPT-5 Pro is a closed model available through an API. The closest open-weights option here is GLM 5.3 Flash.
Can GPT-5 Pro read images?›
It accepts text and images, PDF files as input.
What is GPT-5 Pro?›
GPT-5 Pro is a closed language model from OpenAI, released Oct 2025.
What are the best alternatives to GPT-5 Pro?›
GPT-6 Astra (cheaper), GPT-6 Luna (better), GLM 5.3 Flash (open weights).