Data points: 105
Model compare
The readout for Claude Haiku 4.5 and O3 Mini, before the detailed comparison sheet.
Weighted outcome: Claude Haiku 4.5. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
Claude Haiku 4.5
Claude Haiku 4.5 has the higher weighted result; Model A / B score 60 to 40.
Evidence depth
105 data points
Includes 20 benchmark rows, 0 audit samples, and 7 provider examples.
Selection signal
Start with Claude Haiku 4.5
The charts below split 27 high-signal samples across speed, scores, and audit health.
Switch either side of this report to compare another model with the same LMSpeed data pipeline.
Select a different model to open a new comparison URL.
This report only uses LMSpeed data for Claude Haiku 4.5 and O3 Mini: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Claude Haiku 4.5 | O3 Mini |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 60.0 pts | 40.0 pts |
| Benchmark category leads | 4 categories | 4 categories |
| Operational advantages | Cheapest input price, Average speed, First-token latency, Free providers, Provider coverage | No data |
| Context window | 200K tokens | 200K tokens |
| Max output | 64K tokens | 100K tokens |
| Modalities | Input TextImageFile Output Text |
The overall result weights benchmark capability categories at 80% and price, API speed/latency, and availability at 20%. Recent test volume does not affect the winner, and missing benchmark categories are excluded.
| Model compare | Claude Haiku 4.5 | O3 Mini |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Released | Oct 2025 | Feb 2025 |
| Parameters | No data | No data |
| Tokenizer | Claude | GPT |
| Knowledge cutoff | No data | 2023-10-31 |
| OpenRouter ID | anthropic/claude-haiku-4.5 | openai/o3-mini |
| References | No data | No data |
This report only uses LMSpeed data for Claude Haiku 4.5 and O3 Mini: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Claude Haiku 4.5
Claude Haiku 4.5 is stronger in benchmark categories (Agents, Coding, Multilingual, Multimodal) and operational dimensions (Cheapest input price, Average speed, First-token latency, Free providers, Provider coverage).
O3 Mini
O3 Mini leads these benchmark categories: Reasoning, Knowledge, Math, Instruction following.
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.
Avg. score
Claude Haiku 4.5
49.6
Avg. score
O3 Mini
49.3
Claude Haiku 4.5 leads by 4.0
Claude Haiku 4.5 leads by 9.3
O3 Mini leads by 2.2
O3 Mini leads by 0.5
O3 Mini leads by 12.9
Claude Haiku 4.5 leads by 3.7
Claude Haiku 4.5 leads by 3.2
O3 Mini leads by 2.6
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Claude Haiku 4.5
winner53.0
Rank #66/127 · confidence 1 · eval date 2025-10-15
O3 Mini
52.0
Rank #68/127 · confidence 1 · eval date 2025-01-31
Claude Haiku 4.5
97.3 tok/s
Rank #65/139 · confidence 4
O3 Mini
winner214.7 tok/s
Rank #15/139 · confidence 4
Claude Haiku 4.5
winner0.80 s
Rank #28/139 · confidence 4
O3 Mini
7.10 s
Rank #66/139 · confidence 4
Claude Haiku 4.5
winner0.80 s
Rank #40/139 · confidence 4
O3 Mini
7.10 s
Rank #111/139 · confidence 4
Claude Haiku 4.5
$5.00/M
Rank #106/163 · confidence 4
O3 Mini
winner$4.40/M
Rank #99/163 · confidence 4
Claude Haiku 4.5
$2.00/M
Rank #103/163 · confidence 4
O3 Mini
winner$1.93/M
Rank #100/163 · confidence 4
Claude Haiku 4.5
winner$1.00/M
Rank #100/163 · confidence 4
O3 Mini
$1.10/M
Rank #104/163 · confidence 4
Claude Haiku 4.5
55.7
Rank #33/70 · confidence 1 · eval date 2025-10-15
O3 Mini
winner61.4
Rank #27/70 · confidence 1 · eval date 2025-01-31
Claude Haiku 4.5
winner80.0%
Rank #61/125 · confidence 4
O3 Mini
79.1%
Rank #69/125 · confidence 4
Claude Haiku 4.5
64.6%
Rank #130/187 · confidence 4
O3 Mini
winner74.8%
Rank #96/187 · confidence 4
Claude Haiku 4.5
4.3%
Rank #149/186 · confidence 4
O3 Mini
winner8.7%
Rank #97/186 · confidence 4
Claude Haiku 4.5
51.1%
Rank #59/115 · confidence 4
O3 Mini
winner71.7%
Rank #27/115 · confidence 4
Claude Haiku 4.5
winner73.3
Rank #32/43 · confidence 1 · eval date 2025-10-15
O3 Mini
49.3
Rank #40/43 · confidence 1 · eval date 2025-01-31
Claude Haiku 4.5
winner52.9
Rank #66/100 · confidence 1 · eval date 2025-10-15
O3 Mini
49.4
Rank #69/100 · confidence 1 · eval date 2025-01-31
Claude Haiku 4.5
34.4%
Rank #114/184 · confidence 4
O3 Mini
winner39.9%
Rank #69/184 · confidence 4
Claude Haiku 4.5
46.8
Rank #69/92 · confidence 1 · eval date 2025-10-15
O3 Mini
winner55.2
Rank #56/92 · confidence 1 · eval date 2025-01-31
Claude Haiku 4.5
winner61.6
Rank #32/62 · confidence 1 · eval date 2025-10-15
O3 Mini
44.8
Rank #40/62 · confidence 1 · eval date 2025-01-31
Claude Haiku 4.5
winner72.0
Rank #22/81 · confidence 1 · eval date 2025-10-15
O3 Mini
65.0
Rank #36/81 · confidence 1 · eval date 2025-01-31
Claude Haiku 4.5
69.7
Rank #39/75 · confidence 1 · eval date 2025-10-15
O3 Mini
winner77.2
Rank #24/75 · confidence 1 · eval date 2025-01-31
Claude Haiku 4.5
42.9
Rank #63/95 · confidence 1 · eval date 2025-10-15
O3 Mini
winner59.3
Rank #41/95 · confidence 1 · eval date 2025-01-31
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Haiku 4.5 | O3 Mini |
|---|---|---|
| No completed audits are available from shared providers yet. | ||
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Claude Haiku 4.5 | O3 Mini |
|---|---|---|
25 tests | Claude Haiku 4.5 speed / latency N/A / N/A input / output No data | O3 Mini speed / latency 66 tok/s / 6491ms input / output No data |
20 tests | Claude Haiku 4.5 speed / latency 112 tok/s / 1733ms input / output No data | O3 Mini speed / latency 117 tok/s / 4809ms input / output No data |
6 tests | Claude Haiku 4.5 speed / latency N/A / N/A input / output No data | O3 Mini speed / latency 44 tok/s / 17418ms input / output No data |
5 tests | Claude Haiku 4.5 speed / latency 109 tok/s / 2221ms input / output No data | O3 Mini speed / latency N/A / N/A input / output No data |
5 tests | Claude Haiku 4.5 speed / latency 160 tok/s / 2639ms input / output No data | O3 Mini speed / latency N/A / N/A input / output No data |
Claude Haiku 4.5 claude-haiku-4-5-20251001 speed / latency No data input / output $0/request | O3 Mini o3-mini-high speed / latency No data input / output $1.47/request | |
Claude Haiku 4.5 claude-haiku-4-5-c speed / latency No data input / output $0.0068/request | O3 Mini o3-mini-2025-01-31 speed / latency No data input / output $1.02/M |
Weighted outcome: Claude Haiku 4.5. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Input
Output
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
