BELLISTE / AI COMPARISON

Compare AI models

Choose two models from the same AI category to compare equivalent plans, capabilities and technical details.

DeepSeek

86%

OpenAI

ChatGPT

93%

Estimated Belliste score, based on the available capabilities, quality, features and pricing information. It is an indicative profile estimate, not an independent benchmark.

How this profile estimate is calculated

Capabilities contribute 35%, quality wording 30%, listed features 20%, and pricing 15% when available. When capability fields are absent, specialization breadth supplies a 25% fallback. Missing categories are omitted and the remaining weights are rescaled. The estimate uses each model’s own published profile; it does not measure answer accuracy or replace a hands-on test.

OverviewDeepSeekChatGPT

PriceFree $0/month · API pay-as-you-goFree $0/month · Plus $20/month

Free planFree assistant with no advertised in-app purchasesYes

Paid plansNo public paid chat plan; API metered per tokenPlus $20/month; Pro tiers from $100/month; Business from $20/user/month billed annually; Enterprise custom

Usage limitsApp usage thresholds not publicly specifiedUsage limits vary by plan, model and feature. Deep Research, advanced models, images, files, voice and other tools can have separate allowances.

Key comparison

SpecificationDeepSeekChatGPT

Starting PriceFree $0/month · API pay-as-you-go (no paid chat subscription publicly listed)Free $0/month · Plus from $20/month

AI ModelsDeepSeek V4 Pro (Expert Mode); V4.1 Flash via API; app model availability may differGPT-5.6 Luna / GPT-5.6 Sol / GPT-5.6 Sol Pro / GPT-6 Pro (plan-dependent)

Context WindowUp to 1M tokens announced for DeepSeek V4 official services; effective app limits may vary; API V4 Pro/Flash 1MUp to 256K total context in supported Thinking configurations; varies by model/mode

Advanced ReasoningDeep-Think/Expert reasoning; API supports reasoning effort low, high and max on V4 modelsSelectable reasoning levels on eligible paid plans; higher tiers provide access to more capable reasoning configurations

Web SearchWeb search in DeepSeek app with retrieved information; citation presentation variesChatGPT Search searches the live web and returns answers with inline citations and source links

Deep ResearchDedicated Deep Research mode and quotas not officially disclosed; web-assisted multi-step reasoning availableDeep Research performs multi-step web research, can use uploaded files and eligible connected sources, and produces cited reports; limits vary by plan

Image UnderstandingDeepSeek V4.1 Flash API supports native visual understanding; app support varies by active modelAnalyzes uploaded images, screenshots, diagrams and other supported visual inputs; availability depends on model and plan limits

Image GenerationNative image generation in official DeepSeek chat not confirmedChatGPT Images supports native image generation and editing from text and image prompts; usage limits vary by plan

Voice InputNative voice input not clearly documented in current official app feature listSpeech input supported through Voice; voice availability and limits vary by plan and platform

Voice ConversationsReal-time two-way voice mode not officially confirmedReal-time spoken conversations through ChatGPT Voice; available capabilities vary by plan, platform and selected voice experience

Video UnderstandingVideo understanding in the current consumer app not officially documentedLimited / mode-dependent

Conversation MemoryCross-device synchronized chat history; persistent cross-chat preference memory not officially disclosedCross-chat memory and personalization with user controls; availability and capabilities vary by plan and account

File AnalysisFile upload and text extraction in official app; supported formats and per-file caps not consistently disclosedPDF / DOCX / XLSX / CSV / PPTX / TXT and other supported formats

IntegrationsDeepSeek API supports OpenAI-compatible Chat Completions/Responses and Anthropic-compatible endpointsSupports connected apps and services such as Google Workspace, Microsoft services, Slack, GitHub and other available integrations; availability varies