Model Comparison
GPT-5.5 Instant (May 2026)
vs. M3
Comparing 2 AI models · 7 benchmarks · OpenAI, MiniMax
Recommended Pick
Mi M3 12 metric wins Strongest on: Value, Input price, Output price
Best Value
M3
100.0 value score
61.6 reasoning / $0.52/1M
Lowest Price
M3
$0.30/1M input price
Best Reasoning
M3
61.6 reasoning score
Blends available reasoning benchmarks
Best for Coding
GPT-5.5 Instant (May 2026)
45.1 coding index
Composite Indices
Higher is better; speed and price are normalized
Standard Benchmarks
Only benchmarks with data are shown
Differences That Matter
Best value
M3 has the strongest quality-to-price mix at 100.0 out of 100 value points.
Price gap
M3 is 16.7x cheaper on input tokens than GPT-5.5 Instant (May 2026).
Reasoning gap
M3 leads GPT-5.5 Instant (May 2026) by 12.7 points on reasoning.
Coding gap
GPT-5.5 Instant (May 2026) leads M3 by 1.7 points on coding.
Top-pick rationale
M3 wins 12 measurable categories, including Value, Input price, Output price, Blended price.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
GPT-5.5 Instant (May 2026)
OpenAI
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
M3
MiniMax
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Which answer was more useful?
Full Comparison
| Metric | Op GPT-5.5 Instant (May 2026) | Top Pick Mi M3 |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $5.00/1M | $0.30/1M |
| Output Cost | $30.00/1M | $1.20/1M |
| Blended (3:1) | $11.25/1M | $0.52/1M |
| Specifications | ||
| Organization | OpenAI | MiniMax |
| Release Date | May 5, 2026 | Jun 1, 2026 |
| Performance & Speed | ||
| Throughput | — | 52.7 tok/s |
| TTFT | — | 1821ms |
| Latency | — | 39801ms |
| Composite Indices | ||
| Value Score | 3.7 | 100.0 |
| Reasoning Score | 48.9 | 61.6 |
| Intelligence | 41.8 | 54.7 |
| Coding | 45.1 | 43.4 |
| Standard Benchmarks | ||
| GPQA | 84.6% | 92.9% |
| HLE | 20.3% | 37.1% |
| SciCode | 50.3% | 45.4% |
| LCR | 55.7% | 74.0% |
| IFBench | 71.5% | 82.9% |
| TAU-bench v2 | 49.4% | 88.9% |
| TerminalBench Hard | 42.4% | 42.4% |
Key Takeaways
M3 offers the best value at $0.30/1M, making it ideal for high-volume applications and cost-conscious projects.
M3 has the strongest reasoning profile with a 61.6 reasoning score, combining the available reasoning-heavy benchmarks.
GPT-5.5 Instant (May 2026) reaches a 45.1 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 Instant (May 2026)
- Code generation
- Software development
M3
- Cost-sensitive applications
- High-volume processing
- Complex reasoning tasks
- Research & analysis
