Opus 4.5 vs GPT-5.2
A comprehensive 2026 comparison to help you choose the right AI tool for your needs. We tested both extensively.
Quick Verdict: Opus 4.5 vs GPT-5.2
After extensive testing, **Claude Opus 4.5** comes out ahead with a 4.9/5 rating. It's the better choice for most users, especially those focused on Professional developers, complex codebases, autonomous agents. However, GPT-5.2 Instant remains competitive and may be preferable if you prioritize Daily tasks, writing, translation, quick coding help.
Claude Opus 4.5 edges out GPT-5.2 Instant with superior overall performance and features that make it the better choice for most users in 2026. With a 4.9/5 rating, it excels particularly in Professional developers, complex codebases, autonomous agents.
Try Opus 4.5 FreeFeature Comparison Table
Side-by-side comparison of key features and capabilities
When to Use Opus 4.5 vs GPT-5.2
Choose Opus 4.5 When You Need:
- Professional developers, complex codebases, autonomous agents
- Superior coding assistance and code generation
- Processing longer documents with 200K context
Choose GPT-5.2 When You Need:
- Daily tasks, writing, translation, quick coding help
- Faster response times for time-sensitive work
- Testing capabilities with a free tier before committing
In-Depth Analysis: Opus 4.5 vs GPT-5.2
Performance & Capabilities
In our comprehensive testing for 2026, we evaluated both Claude Opus 4.5 and GPT-5.2 Instant across multiple dimensions including coding tasks, creative writing, reasoning problems, and general conversation quality. Claude Opus 4.5 emerged as our top pick with an overall rating of 4.9/5.
Claude Opus 4.5 scored 5.0/5 on coding tasks, making it an excellent choice for developers. In comparison, GPT-5.2 Instant achieved 4.6/5 in this category.
Pricing & Value
When it comes to pricing, GPT-5.2 Instant offers a free tier for testing. For paid plans, GPT-5.2 Instant is more affordable at $20/month compared to $20/month.
Use Cases & Target Audience
Claude Opus 4.5 is particularly well-suited for Professional developers, complex codebases, autonomous agents. Its strengths make it ideal for professionals who need advanced coding help, quality content creation, and reliable AI assistance.
GPT-5.2 Instant, on the other hand, excels at Daily tasks, writing, translation, quick coding help. Users who prioritize fast response times, complex reasoning, will find it particularly valuable.
Claude Opus 4.5 Pros & Cons
Pros
- Best coding model available (80.9% SWE-bench)
- Excellent for autonomous agents
- Effort parameter allows speed/quality tradeoff
- 76% fewer tokens than Sonnet at same quality
- Strong at long-horizon tasks
Cons
- More expensive than Sonnet
- Slower on simple tasks
- Requires Claude Pro/Max subscription for full access
GPT-5.2 Instant Pros & Cons
Pros
- Newest OpenAI model (Dec 2025)
- Fast responses optimized for speed
- 30% fewer hallucinations than GPT-5.1
- Knowledge cutoff August 2025
- Better at spreadsheets and presentations
- Matches human experts on professional tasks
Cons
- Not as strong as Thinking variant for complex tasks
- Requires paid subscription for full access
- Coding not as strong as Claude Opus 4.5
Best For: Opus 4.5
Professional developers, complex codebases, autonomous agents
Best For: GPT-5.2
Daily tasks, writing, translation, quick coding help
Frequently Asked Questions
Common questions about Opus 4.5 vs GPT-5.2
Is Claude Opus 4.5 better than GPT-5.2 Instant in 2026?
Based on our benchmarks and analysis, Claude Opus 4.5 performs better overall with a rating of 4.9/5. However, the best choice depends on your specific needs - Claude Opus 4.5 excels at Professional developers, complex codebases, autonomous agents, while GPT-5.2 Instant is better for Daily tasks, writing, translation, quick coding help.
What is the price difference between Opus 4.5 and GPT-5.2?
Claude Opus 4.5 costs $20/month for paid plans. GPT-5.2 Instant offers a free tier and costs $20/month for paid plans.
Which is better for coding: Opus 4.5 or GPT-5.2?
For coding tasks, Claude Opus 4.5 scores higher with a 5.0/5 coding rating compared to 4.6/5.
Can I use Opus 4.5 and GPT-5.2 for free?
Claude Opus 4.5 requires a paid subscription. GPT-5.2 Instant does offer a free tier with limited features. Both tools offer trial periods or limited free access for new users.
Which AI has a larger context window: Opus 4.5 or GPT-5.2?
Claude Opus 4.5 has a larger context window at 200,000 tokens, compared to 128,000 tokens. Larger context windows allow processing more text in a single conversation.
Is Opus 4.5 faster than GPT-5.2?
In our speed tests, GPT-5.2 Instant is faster with a speed rating of 4.9/5. Response times can vary based on server load and query complexity.
Which is better for writing content: Opus 4.5 or GPT-5.2?
For content writing, GPT-5.2 Instant excels with a writing rating of 4.8/5 versus 4.8/5. Consider your specific writing needs when choosing.
Do Opus 4.5 and GPT-5.2 support image generation?
Claude Opus 4.5 supports image understanding and analysis. GPT-5.2 Instant supports image understanding and analysis. For dedicated image generation, consider specialized tools like DALL-E or Midjourney.
Which AI should beginners choose: Opus 4.5 or GPT-5.2?
For beginners, we recommend GPT-5.2 Instant since it offers a free tier. Claude Opus 4.5 has a slightly better overall user experience based on our testing.
Can I switch from Opus 4.5 to GPT-5.2 easily?
Yes, switching between AI tools is straightforward since they use similar prompting interfaces. Your conversation history won't transfer, but you can export important outputs. Many professionals use both tools depending on the task - Claude Opus 4.5 for Professional developers, complex codebases, autonomous agents and GPT-5.2 Instant for Daily tasks, writing, translation, quick coding help.
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Both tools offer free tiers or trials. Try them out and see which one works best for your workflow in 2026.