Model Comparison
GPT-5.5 (xhigh)
vs. M3
Comparing 2 AI models · 7 benchmarks · OpenAI, MiniMax
Recommended Pick
Op GPT-5.5 (xhigh) 10 metric wins Strongest on: Throughput, Reasoning, Intelligence
Lowest Price
M3
$0.00/1M input price
Best Reasoning
GPT-5.5 (xhigh)
66.0 reasoning score
Blends available reasoning benchmarks
Best for Coding
GPT-5.5 (xhigh)
59.1 coding index
Composite Indices
Higher is better; speed and price are normalized
Standard Benchmarks
Only benchmarks with data are shown
Differences That Matter
Price gap
M3 is ∞x cheaper on input tokens than GPT-5.5 (xhigh).
Reasoning gap
GPT-5.5 (xhigh) leads M3 by 4.4 points on reasoning.
Coding gap
GPT-5.5 (xhigh) leads M3 by 15.7 points on coding.
Top-pick rationale
GPT-5.5 (xhigh) wins 10 measurable categories, including Throughput, Reasoning, Intelligence, Coding.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
GPT-5.5 (xhigh)
OpenAI
TTFT
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Time
—
tok/s
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Tokens
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Cost
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M3
MiniMax
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
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Which answer was more useful?
Full Comparison
| Metric | Top Pick Op GPT-5.5 (xhigh) | Mi M3 |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $5.00/1M | $0.00/1M |
| Output Cost | $30.00/1M | $0.00/1M |
| Blended (3:1) | $11.25/1M | — |
| Specifications | ||
| Organization | OpenAI | MiniMax |
| Release Date | Apr 23, 2026 | Jun 1, 2026 |
| Performance & Speed | ||
| Throughput | 70.7 tok/s | — |
| TTFT | 43813ms | — |
| Latency | 43813ms | — |
| Composite Indices | ||
| Value Score | 100.0 | — |
| Reasoning Score | 66.0 | 61.6 |
| Intelligence | 60.2 | 54.7 |
| Coding | 59.1 | 43.4 |
| Standard Benchmarks | ||
| GPQA | 93.5% | 92.9% |
| HLE | 44.3% | 37.1% |
| SciCode | 56.1% | 45.4% |
| LCR | 74.3% | 74.0% |
| IFBench | 75.9% | 82.9% |
| TAU-bench v2 | 93.9% | 88.9% |
| TerminalBench Hard | 60.6% | 42.4% |
Key Takeaways
M3 offers the best value at $0.00/1M, making it ideal for high-volume applications and cost-conscious projects.
GPT-5.5 (xhigh) has the strongest reasoning profile with a 66.0 reasoning score, combining the available reasoning-heavy benchmarks.
GPT-5.5 (xhigh) reaches a 59.1 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
GPT-5.5 (xhigh)
- Complex reasoning tasks
- Research & analysis
- Code generation
- Software development
M3
- Cost-sensitive applications
- High-volume processing
