Data points: 109
Model compare
The readout for Claude Haiku 4.5 and GPT-4o, 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 96 to 4.
Evidence depth
109 data points
Includes 22 benchmark rows, 0 audit samples, and 7 provider examples.
Selection signal
Start with Claude Haiku 4.5
The charts below split 29 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 GPT-4o: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Claude Haiku 4.5 | GPT-4o |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 96.0 pts | 4.0 pts |
| Benchmark category leads | 8 categories | 0 categories |
| Operational advantages | Cheapest input price, Average speed, First-token latency, Provider coverage | Free providers |
| Context window | 200K tokens | 128K tokens |
| Max output | 64K tokens | 16.4K 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 | GPT-4o |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Released | Oct 2025 | Nov 2024 |
| Parameters | No data | No data |
| Tokenizer | Claude | GPT |
| Knowledge cutoff | No data | 2023-10-31 |
| OpenRouter ID | anthropic/claude-haiku-4.5 | openai/gpt-4o |
| References | No data | No data |
This report only uses LMSpeed data for Claude Haiku 4.5 and GPT-4o: 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, Reasoning, Knowledge, Math) and operational dimensions (Cheapest input price, Average speed, First-token latency, Provider coverage).
GPT-4o
GPT-4o has these operational advantages: Free providers.
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
GPT-4o
44
Claude Haiku 4.5 leads by 4.8
Claude Haiku 4.5 leads by 6.6
Claude Haiku 4.5 leads by 7.3
Claude Haiku 4.5 leads by 1.9
Claude Haiku 4.5 leads by 3.6
Claude Haiku 4.5 leads by 4.3
Claude Haiku 4.5 leads by 4.5
Claude Haiku 4.5 leads by 11.5
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
GPT-4o
41.0
Rank #86/127 · confidence 1 · eval date 2024-05-13
Claude Haiku 4.5
0.80 s
Rank #28/139 · confidence 4
GPT-4o
winner0.49 s
Rank #8/139 · confidence 4
Claude Haiku 4.5
0.80 s
Rank #40/139 · confidence 4
GPT-4o
winner0.49 s
Rank #12/139 · confidence 4
Claude Haiku 4.5
97.3 tok/s
Rank #65/139 · confidence 4
GPT-4o
winner194.4 tok/s
Rank #21/139 · confidence 4
Claude Haiku 4.5
winner$1.00/M
Rank #100/163 · confidence 4
GPT-4o
$2.50/M
Rank #133/163 · confidence 4
Claude Haiku 4.5
winner$2.00/M
Rank #103/163 · confidence 4
GPT-4o
$4.38/M
Rank #129/163 · confidence 4
Claude Haiku 4.5
winner$5.00/M
Rank #106/163 · confidence 4
GPT-4o
$10.00/M
Rank #122/163 · confidence 4
Claude Haiku 4.5
winner55.7
Rank #33/70 · confidence 1 · eval date 2025-10-15
GPT-4o
44.4
Rank #46/70 · confidence 1 · eval date 2024-05-13
Claude Haiku 4.5
winner80.0%
Rank #61/125 · confidence 4
GPT-4o
74.8%
Rank #90/125 · confidence 4
Claude Haiku 4.5
winner64.6%
Rank #130/187 · confidence 4
GPT-4o
54.3%
Rank #155/187 · confidence 4
Claude Haiku 4.5
winner4.3%
Rank #149/186 · confidence 4
GPT-4o
3.3%
Rank #179/186 · confidence 4
Claude Haiku 4.5
winner51.1%
Rank #59/115 · confidence 4
GPT-4o
30.9%
Rank #88/115 · confidence 4
Claude Haiku 4.5
winner52.9
Rank #66/100 · confidence 1 · eval date 2025-10-15
GPT-4o
35.0
Rank #80/100 · confidence 1 · eval date 2024-05-13
Claude Haiku 4.5
winner34.4%
Rank #114/184 · confidence 4
GPT-4o
33.3%
Rank #119/184 · confidence 4
Claude Haiku 4.5
winner5.9
Rank #36/47 · confidence 1 · eval date 2025-10-15
GPT-4o
0.3
Rank #47/47 · confidence 1 · eval date 2024-05-13
Claude Haiku 4.5
winner29.5
Rank #46/59 · confidence 1 · eval date 2025-10-15
GPT-4o
25.8
Rank #56/59 · confidence 1 · eval date 2024-05-13
Claude Haiku 4.5
winner46.8
Rank #69/92 · confidence 1 · eval date 2025-10-15
GPT-4o
33.2
Rank #80/92 · confidence 1 · eval date 2024-05-13
Claude Haiku 4.5
winner61.6
Rank #32/62 · confidence 1 · eval date 2025-10-15
GPT-4o
42.0
Rank #41/62 · confidence 1 · eval date 2024-05-13
Claude Haiku 4.5
winner72.0
Rank #22/81 · confidence 1 · eval date 2025-10-15
GPT-4o
62.1
Rank #45/81 · confidence 1 · eval date 2024-05-13
Claude Haiku 4.5
winner1156.0
Rank #51/65 · confidence 1 · eval date 2025-10-15
GPT-4o
866.0
Rank #64/65 · confidence 1 · eval date 2024-05-13
Claude Haiku 4.5
winner69.7
Rank #39/75 · confidence 1 · eval date 2025-10-15
GPT-4o
59.9
Rank #53/75 · confidence 1 · eval date 2024-05-13
Claude Haiku 4.5
winner42.9
Rank #63/95 · confidence 1 · eval date 2025-10-15
GPT-4o
36.9
Rank #70/95 · confidence 1 · eval date 2024-05-13
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Haiku 4.5 | GPT-4o |
|---|---|---|
| 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 | GPT-4o |
|---|---|---|
20 tests | Claude Haiku 4.5 speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 88 tok/s / 1593ms input / output No data |
15 tests | Claude Haiku 4.5 speed / latency 112 tok/s / 1733ms input / output No data | GPT-4o speed / latency N/A / N/A input / output No data |
5 tests | Claude Haiku 4.5 speed / latency 21 tok/s / 1170ms input / output No data | GPT-4o speed / latency N/A / N/A input / output No data |
5 tests | Claude Haiku 4.5 speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 48 tok/s / 13138ms input / output No data |
5 tests | Claude Haiku 4.5 speed / latency 109 tok/s / 2221ms input / output No data | GPT-4o speed / latency N/A / N/A input / output No data |
Claude Haiku 4.5 claude-haiku-4-5 speed / latency No data input / output $0.082/M/$0.411/M | GPT-4o gpt-4o-2024-08-06 speed / latency No data input / output $0/M | |
Claude Haiku 4.5 claude-haiku-4-5-20251001 speed / latency No data input / output $0/request | GPT-4o gpt-4o-2024-08-06 speed / latency No data input / output $0/request |
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 inputImage inputFile inputText outputTool callingStructured outputsJSON modeWeb search |
|---|
