Model Comparison
Claude Opus 4.8 (Adaptive Reasoning, Max Effort)
vs. GPT-5.6 Terra (medium)
Comparing 2 AI models · 0 benchmarks · Anthropic, OpenAI
Recommended Pick
OpGPT-5.6 Terra (medium)7 metric winsStrongest on: Value, Input price, Output price
Best Value
GPT-5.6 Terra (medium)
100.0 value score
46.8 reasoning / $4.50/1M
Lowest Price
GPT-5.6 Terra (medium)
$2.00/1M input price
Best Reasoning
Claude Opus 4.8 (Adaptive Reasoning, Max Effort)
57.3 reasoning score
Blends available reasoning benchmarks
Best for Coding
Claude Opus 4.8 (Adaptive Reasoning, Max Effort)
74.3 coding index
Differences That Matter
Best value
GPT-5.6 Terra (medium) has the strongest quality-to-price mix at 100.0 out of 100 value points.
Price gap
GPT-5.6 Terra (medium) is 2.5x cheaper on input tokens than Claude Opus 4.8 (Adaptive Reasoning, Max Effort).
Speed gap
GPT-5.6 Terra (medium) generates about 1.8x as many tokens per second as Claude Opus 4.8 (Adaptive Reasoning, Max Effort).
Reasoning gap
Claude Opus 4.8 (Adaptive Reasoning, Max Effort) leads GPT-5.6 Terra (medium) by 10.5 points on reasoning.
Coding gap
Claude Opus 4.8 (Adaptive Reasoning, Max Effort) leads GPT-5.6 Terra (medium) by 9.6 points on coding.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Claude Opus 4.8 (Adaptive Reasoning, Max Effort)
Anthropic
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
GPT-5.6 Terra (medium)
OpenAI
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Which answer was more useful?
Chat with leading AI models
Use Claude, ChatGPT, Gemini alongside with EU-Hosted Models like Deepseek, Qwen & Kimi.
EU-hosted inference
Servers in Germany & Finland. Designed to meet strict GDPR and ISO 27001 compliance requirements.
Full Comparison
| Metric | An Claude Opus 4.8 (Adaptive Reasoning, Max Effort) | Top Pick Op GPT-5.6 Terra (medium) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $5.00/1M | $2.00/1M |
| Output Cost | $25.00/1M | $12.00/1M |
| Blended (3:1) | $10.00/1M | $4.50/1M |
| Specifications | ||
| Organization | Anthropic | OpenAI |
| Release Date | May 28, 2026 | Jul 9, 2026 |
| Performance & Speed | ||
| Throughput | 61.1 tok/s | 110.5 tok/s |
| TTFT | 33430ms | 1860ms |
| Latency | 33430ms | 1860ms |
| Composite Indices | ||
| Value Score | 55.1 | 100.0 |
| Reasoning Score | 57.3 | 46.8 |
| Intelligence | 57.3 | 46.8 |
| Coding | 74.3 | 64.7 |
Key Takeaways
GPT-5.6 Terra (medium) offers the best value at $2.00/1M,making it ideal for high-volume applications and cost-conscious projects.
Claude Opus 4.8 (Adaptive Reasoning, Max Effort) has the strongest reasoning profile with a 57.3 reasoning score,combining the available reasoning-heavy benchmarks.
Claude Opus 4.8 (Adaptive Reasoning, Max Effort) reaches a 74.3 coding index,making it the top choice for software development and code generation tasks.
All models support context windows of ∞+ tokens,suitable for processing lengthy documents and maintaining extended conversations.
When to Choose Each Model
Claude Opus 4.8 (Adaptive Reasoning, Max Effort)
- Complex reasoning tasks
- Research & analysis
- Code generation
- Software development
GPT-5.6 Terra (medium)
- Cost-sensitive applications
- High-volume processing
