Model Comparison
Olmo 3 7B Instruct
vs. Step 3.5 Flash
Comparing 2 AI models · 10 benchmarks · Allen Institute for AI, StepFun
Recommended Pick
StStep 3.5 Flash11 metric winsStrongest on: Value, Throughput, Reasoning
Best Value
Step 3.5 Flash
100.0 value score
42.6 reasoning / $0.15/1M
Lowest Price
Olmo 3 7B Instruct
$0.10/1M input price
Best Reasoning
Step 3.5 Flash
42.6 reasoning score
Blends available reasoning benchmarks
Composite Indices
Higher is better; speed and price are normalized
Standard Benchmarks
Only benchmarks with data are shown
Differences That Matter
Best value
Step 3.5 Flash has the strongest quality-to-price mix at 100.0 out of 100 value points.
Reasoning gap
Step 3.5 Flash leads Olmo 3 7B Instruct by 16.3 points on reasoning.
Top-pick rationale
Step 3.5 Flash wins 11 measurable categories, including Value, Throughput, Reasoning, Intelligence.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Olmo 3 7B Instruct
Allen Institute for AI
TTFT
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Time
—
tok/s
—
Tokens
—
Cost
—
Step 3.5 Flash
StepFun
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Which answer was more useful?
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Full Comparison
| Metric | Al Olmo 3 7B Instruct | Top Pick St Step 3.5 Flash |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.10/1M | $0.10/1M |
| Output Cost | $0.20/1M | $0.30/1M |
| Blended (3:1) | $0.13/1M | $0.15/1M |
| Specifications | ||
| Organization | Allen Institute for AI | StepFun |
| Release Date | Nov 20, 2025 | Feb 2, 2026 |
| Performance & Speed | ||
| Throughput | — | 208.6 tok/s |
| TTFT | — | 783ms |
| Latency | — | 10371ms |
| Composite Indices | ||
| Value Score | 74.0 | 100.0 |
| Reasoning Score | 26.2 | 42.6 |
| Intelligence | 2.8 | 25.5 |
| Math | 41.3 | — |
| Standard Benchmarks | ||
| GPQA | 40.0% | 83.1% |
| MMLU Pro | 52.2% | — |
| HLE | 5.8% | 19.1% |
| LiveCodeBench | 26.6% | — |
| AIME 2025 | 41.3% | — |
| SciCode | 10.3% | 40.4% |
| LCR | 0.0% | 43.0% |
| IFBench | 32.8% | 64.6% |
| TAU-bench v2 | 12.6% | 94.4% |
| TerminalBench Hard | 0.0% | 27.3% |
Key Takeaways
Olmo 3 7B Instruct offers the best value at $0.10/1M,making it ideal for high-volume applications and cost-conscious projects.
Step 3.5 Flash has the strongest reasoning profile with a 42.6 reasoning score,combining the available reasoning-heavy benchmarks.
All models support context windows of ∞+ tokens,suitable for processing lengthy documents and maintaining extended conversations.
When to Choose Each Model
Olmo 3 7B Instruct
- Cost-sensitive applications
- High-volume processing
Step 3.5 Flash
- Complex reasoning tasks
- Research & analysis
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