Free GPT API - 156 Models, Compare Speed & Latency

Model	Providers	Speed	Latency	Tests
GPT-4o Mini TTSOpenAIFree OpenAI GPT-4o Mini TTS is a text-to-speech model, designed for high-quality speech synthesis from text input.	兔子API DMXAPI AIsa +5 moreShow fewer 42公益站 ZetaTechs API 毫秒API WAADRI MyNav AI	N/A	N/A	0
GPT-4 VisionOpenAIFree ChatVisionDeprecatedOpenAI GPT-4 Vision is a multimodal vision-language model in the GPT-4 series, supporting both text and image understanding.	兔子API 艾可API AIO通用智能服务平台 +4 moreShow fewer	N/A	N/A	0
OpenAIFree GPT-SoVITS is an open text-to-speech model that synthesizes high-quality speech from text with few-shot voice adaptation, popular for dubbing, localization, and voice cloning projects.		N/A	N/A	0
OpenAIFree OpenAI GPT-4.5 advances general reasoning, tool use, and multimodal understanding for demanding assistant and agent applications.	+1 moreShow fewer	N/A	N/A	0
OpenAIFree ReasoningToolsFilesVisionOpenAI GPT-5.4 Nano is a compact language model in the GPT-5 series, optimized for low-latency responses and efficient inference.	+13 moreShow fewer	N/A	N/A	0
OpenAIFree FastToolsReasoningFilesOpenAI GPT-5.4 Mini is a compact language model in the GPT-5 series, optimized for quick responses and high throughput.	+46 moreShow fewer	144.48 t/s	4.78 s	40
OpenAIFree ReasoningToolsFilesVisionOpenAI GPT-5.4 Pro is a high-capability language model in the GPT-5 series, offering enhanced reasoning, code generation, and multimodal capabilities.	+10 moreShow fewer	N/A	N/A	0
OpenAIFree CodexReasoningToolsFilesOpenAI GPT-5.4 extends the GPT-5 family with stronger instruction following, deeper tool use, and improved performance on coding, math, and long-document analysis.	+62 moreShow fewer	48.41 t/s	6.43 s	270
OpenAIFree ReasoningToolsFilesVisionOpenAI GPT-5.3 is a GPT-5 series checkpoint tuned for stronger reasoning, coding, and agentic workflows on complex user tasks.	+12 moreShow fewer	N/A	N/A	0
OpenAIFree CodexReasoningTools128KOpenAI GPT-5.3 Codex is a code-specialized variant in the GPT-5 series, optimized for code generation, debugging, and software development tasks.	+50 moreShow fewer	47.34 t/s	4.16 s	25
OpenAIFree CodexReasoningToolsFilesOpenAI GPT-5.2 Codex is a code-specialized variant in the GPT-5 series, optimized for code generation, debugging, and software development tasks.	+21 moreShow fewer	30.05 t/s	4.72 s	5
OpenAIFree CodexReasoningToolsFilesOpenAI GPT-5.2 is a GPT-5 series model emphasizing advanced reasoning, multimodal understanding, and high-quality outputs for complex enterprise workloads.	+50 moreShow fewer	64.56 t/s	4.77 s	5
OpenAIFree ReasoningToolsFilesVisionOpenAI GPT-5.2 Pro is a high-capability language model in the GPT-5 series, offering enhanced reasoning, code generation, and multimodal capabilities.	+13 moreShow fewer	N/A	N/A	0
OpenAIFree CodexReasoningToolsFilesOpenAI GPT-5.1 Codex Max is a code-specialized variant in the GPT-5 series, optimized for code generation, debugging, and software development tasks.	+18 moreShow fewer	N/A	N/A	0
OpenAIFree CodexReasoningToolsFilesOpenAI GPT-5.1 is a GPT-5 series model focused on improved reasoning depth, tool use, and reliable long-form generation for production AI applications.	+26 moreShow fewer	N/A	N/A	0
OpenAIFree CodexReasoningToolsFilesOpenAI GPT-5.1 Codex is a code-specialized variant in the GPT-5 series, optimized for code generation, debugging, and software development tasks.	+19 moreShow fewer	N/A	N/A	0
OpenAIFree CodexReasoningToolsFilesOpenAI GPT-5.1 Codex Mini is a code-specialized variant in the GPT-5 series, optimized for code generation, debugging, and software development tasks.	+17 moreShow fewer	N/A	N/A	0
OpenAIFree ReasoningToolsFilesVisionOpenAI GPT-5 Image Mini is an image generation model, capable of producing images from text prompts.		N/A	N/A	0
OpenAIFree ReasoningToolsFilesVisionOpenAI GPT-5 Image is an image generation model that creates high-quality visuals from text prompts, supporting creative design, marketing assets, and multimodal applications.		N/A	N/A	0
OpenAIFree ReasoningToolsFilesVisionOpenAI GPT-5 Pro is a high-capability language model in the GPT-5 series, offering enhanced reasoning, code generation, and multimodal capabilities.	+8 moreShow fewer	N/A	N/A	0
OpenAIFree ReasoningToolsFilesVisionOpenAI GPT-5 Codex is a code-specialized variant in the GPT-5 series, optimized for code generation, debugging, and software development tasks.	+19 moreShow fewer	N/A	N/A	0
OpenAIFree ReasoningFilesVision128KOpenAI GPT-5 is OpenAI frontier general-purpose model with improved reasoning depth, coding reliability, and multimodal understanding for production assistants and agent workflows.	+24 moreShow fewer	N/A	N/A	0
OpenAIFree ReasoningToolsFilesVisionOpenAI GPT-5 Mini is a compact language model in the GPT-5 series, optimized for low-latency responses and efficient inference.	+17 moreShow fewer	N/A	N/A	0
OpenAIFree ReasoningToolsFilesVisionOpenAI GPT-5 Nano is a compact language model in the GPT-5 series, optimized for low-latency responses and efficient inference.	+16 moreShow fewer	N/A	N/A	0
Cloudflare Workers AIFree ReasoningToolsOpen Weights131.1KGPT-OSS is an open-weight language model family designed for self-hosted inference, research, and cost-efficient alternatives to proprietary GPT-class models.	+38 moreShow fewer	443.53 t/s	0.98 s	20
OpenAIFree ToolsFilesVision1MOpenAI GPT-4.1 delivers upgraded coding, instruction following, and long-context performance as a successor within the GPT-4 family.	+15 moreShow fewer	80.83 t/s	1.82 s	120
OpenAIFree ToolsFilesVision1MOpenAI GPT-4.1 Mini is a compact language model in the GPT-4 series, optimized for low-latency responses and efficient inference.	+15 moreShow fewer	N/A	N/A	0
OpenAIFree ToolsFilesVision1MOpenAI GPT-4.1 Nano is a compact language model in the GPT-4 series, optimized for low-latency responses and efficient inference.	+15 moreShow fewer	126.63 t/s	2.01 s	75
OpenAIFree FilesVision128KOpenAI GPT-4o Mini Search is a search-augmented language model in the GPT-4 series, integrating web retrieval to provide up-to-date answers.	+5 moreShow fewer	N/A	N/A	0
OpenAIFree FilesVision128KOpenAI GPT-4o Search is a search-augmented language model in the GPT-4 series, integrating web retrieval to provide up-to-date answers.	+6 moreShow fewer	N/A	N/A	0
OpenAIFree ToolsFilesVision128KOpenAI GPT-4o is a multimodal flagship model with fast text, vision, and audio understanding, optimized for real-time chat, coding assistants, and production API workloads.	+18 moreShow fewer	N/A	N/A	0
OpenAIFree ToolsFilesVision128KOpenAI GPT-4o Mini is a compact language model in the GPT-4 series, optimized for low-latency responses and efficient inference.	+20 moreShow fewer	129.73 t/s	1.13 s	15
OpenAIFree ToolsFilesVision128KOpenAI GPT-4 Turbo delivers GPT-4-level reasoning with a 128K context window, vision support, and lower latency for production chat, analysis, and agent backends.	+8 moreShow fewer	N/A	N/A	0
OpenAIFree 16.4K4.1KChatOpenAI GPT-3.5 Turbo is a cost-efficient chat model for high-volume assistants, summarization, and lightweight coding workflows where GPT-4-class quality is not required.	+12 moreShow fewer	N/A	N/A	0
OpenAIFree 4.1KChatOpenAI GPT-3.5 Turbo Instruct is a completion-style model tuned for single-turn instructions, legacy integrations, and text generation tasks that predate chat-completions APIs.	+6 moreShow fewer	N/A	N/A	0
OpenAIFree Tools32.8KFiles8.2KOpenAI GPT-4 is a flagship large language model with strong reasoning, instruction following, and tool use, widely used for complex analysis, coding, and production chat applications.	+12 moreShow fewer	N/A	N/A	0

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