Build AI products powered by GPT-5 Codex or Qwen3-Plus - no coding required
Start buildingGPT-5 Codex vs Qwen3-Plus
Compare GPT-5 Codex and Qwen3-Plus. Build AI products powered by either model on Appaca.
Get startedModel Comparison
| Feature | GPT-5 Codex | Qwen3-Plus |
|---|---|---|
| Provider | OpenAI | Alibaba Cloud |
| Model Type | text | text |
| Context Window | 400,000 tokens | 1,000,000 tokens |
| Input Cost | $1.25/ 1M tokens | $0.12/ 1M tokens |
| Output Cost | $10.00/ 1M tokens | $0.29/ 1M tokens |
Build with it | Build with GPT-5 Codex | Build with Qwen3-Plus |
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Power your AI product with GPT-5 Codex, Qwen3-Plus, or any supported model. Switch anytime.
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Strengths & Best Use Cases
GPT-5 Codex
OpenAI1. Purpose-Built for Agentic Coding
- Optimized specifically for scenarios where the model must act as an autonomous or semi-autonomous coding agent.
- Tailored for Codex workflows such as planning, editing, debugging, and multi-step tool-driven code tasks.
2. Advanced Coding Reasoning
- Extends GPT-5's higher reasoning mode to better handle complex software logic and multi-file dependencies.
- Produces more accurate, structured, and maintainable code across modern programming languages.
3. Strong Tool Use in Developer-Like Environments
- Designed for Codex's agent environment, enabling the model to:
- Read and modify files
- Follow function signatures and API contracts
- Navigate codebases with awareness of context and structure
4. Large Context Window for Full-Project Understanding
- 400,000-token context allows ingestion of:
- Entire repositories
- Multiple files at once
- Architectural descriptions
- Enables long-range reasoning across codebases rather than isolated snippets.
5. Multimodal Capability for Development Tasks
- Accepts text and image as input (great for screenshots of error logs, UI mocks, whiteboards).
- Outputs text only, focusing its output precision on code, reasoning, and documentation.
6. Continuous Snapshot Updates
- The underlying model version is regularly upgraded behind the scenes.
- Ensures developers always use the best coding-enhanced GPT-5 variant without changing model names.
7. Reliable Instruction Following
- Very strong adherence to constraints like:
- File/folder structure requirements
- Framework conventions
- Naming patterns
- Linting rules
- Makes it suitable for production coding agents.
8. Broad API Integration
- Available only in the Responses API, giving you:
- Streaming
- Structured outputs
- Function calling
- Allows creation of interactive coding tools and agent workflows with tight model control.
Qwen3-Plus
Alibaba Cloud1. Major upgrade over previous Plus models
- Better reasoning, code generation, and tool-call performance.
2. Supports thinking vs non-thinking modes
- Thinking for hard problems.
- Non-thinking for speed.
3. Improved human preference alignment
- Better writing quality, multi-turn memory, and formatting stability.
4. Excellent for agent-style apps
- Accurate function calling and tool use.
Prompts to Get Started
Use these prompts to power AI products you build on Appaca. Each works great with the models above.
Best for GPT-5 Codex
textCase Study (Story + Proof + Objections)
Craft a case study outline that proves your USP by showing how a customer like your persona overcame their challenges.
Land Improvement Cost Estimator (Value-Add Flip)
Estimate preliminary cost ranges for common land improvements (clearing, driveway, perc, utilities) and identify the best ROI for a flip.
Competitor Gap Finder: Unserved Audience Pain Points
Identify pain points your competitors likely ignore and explain why addressing them builds trust and differentiation.
Best for Qwen3-Plus
textTravel Itinerary Generator
Create personalized day-by-day travel itineraries for any destination, budget, and travel style.
Customer Loyalty Program (Rewards + Advocacy)
Create a loyalty program that rewards continued engagement and advocacy, reinforcing how your USP supports ongoing persona challenges.
Referral Program (Incentives + Mechanics)
Create a referral marketing program that incentivizes your persona to share your USP with peers facing similar challenges.
What AI product will you build?
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Cheyanne Carter
Founder & CEO, Edubuddy
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Build AI products powered by GPT-5 Codex or Qwen3-Plus
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