GPT-5 Pro
Oct 2025
GPT-5 ProCompare inon
GPT-5 Pro measured on 6 of 109 Chat & Knowledge benchmarks6
BenchmarkByScoreRank
Reasoning4
Math2Leads on 1
No benchmark matches
Alternatives?
ModelScoreCostPer taskWhat changes
CheaperGemini 3.8 Flashhigh+40%-96%*$3.49Sampling parameters are ignored+1BetterGPT-6 Lunaxhigh+4%-100%$0.042Function calling only with none · Chat Completions+3
OpenDeepSeek V4.1 Flash 1017high+35%-99%$0.30 / $1.20Pass back reasoning_content · Chat Completions+4CheaperGemini 4 Argonhigh+40%-90%*$1.62Synchronous output stops at 65,536+2CheaperGPT-6.1 Solhigh+40%-90%$0.32Remove unsupported parameters+5ModelScoreCostPer taskWhat changes
Gemini 3.8 Flashhigh+40%-96%*$3.49Sampling parameters are ignored+1Gemini 4 Argonhigh+40%-90%*$1.62Synchronous output stops at 65,536+2GPT-6.1 Solhigh+40%-90%$0.32Remove unsupported parameters+5
Claude Opus 5.5high+40%-81%$1.82No forced tool use+5Claude Fable 5max+40%-52%$8.75ModelScoreCostPer taskWhat changes
GPT-6 Lunaxhigh+4%-100%$0.042Function calling only with none · Chat Completions+3GPT-5.6 Lunahigh+9%-99%$0.044Claude Haiku 5.5high+16%-100%$0.079Remove sampling parameters+5GPT-6.1 Sollow+33%-90%$0.13Remove unsupported parameters+5GPT-5.6 Terramedium+10%-89%$0.18Prompts with >272K input tokensModelScoreCostPer taskWhat changes
DeepSeek V4.1 Flash 1017highOpen+35%-99%$0.30 / $1.20Pass back reasoning_content · Chat Completions+4
Kimi K3maxOpen+35%-85%$2.00Sampling parameters are fixed+3
GLM 5.3 FlashmaxOpen+30%-99%$0.28Defaults to max · Self-hosted+4DeepSeek V4 Pro 0813lowOpen+29%-95%$1.32 / $3.96No image input+5
Muse Spark OpenxhighOpen+27%-95%$0.84Reasoning off leaves output unchanged · Self-hosted / llama.cpp+1ModelScoreCostPer taskWhat changes
GPT-6 Astramedium+39%—$1.54Monitoring can return HTTP 403+2GPT-5.5 Prohigh+38%—$30 / $180GPT-6.1 Solmedium+36%—$0.21Remove unsupported parameters+5GPT-5.4 Proxhigh+35%—$30 / $180No strict JSONGPT-5.4xhigh+33%—$2.50 / $15GPT-5.6 Solmedium+32%—$0.50GPT-5.5medium+31%—$0.77Prompts with >272K input tokensGPT-6 Solmedium+19%—$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?›
#44 of 69 in Chat & Knowledge.
Is GPT-5 Pro better than GPT-5.1?›
On ARC-AGI-1 · semi-private, GPT-5 Pro scores 70.2 vs 72.8 — lower.
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 has been superseded by GPT-5.6 Sol.
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 DeepSeek V4.1 Flash 1017.
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?›
Gemini 3.8 Flash (cheaper), GPT-6 Luna (better), DeepSeek V4.1 Flash 1017 (open weights).