Data points: 85
Model compare
The readout for Claude Haiku 4.5 and GPT-5, before the detailed comparison sheet.
Weighted outcome: GPT-5. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-5
GPT-5 has the higher weighted result; Model A / B score 16 to 84.
Evidence depth
85 data points
Includes 10 benchmark rows, 0 audit samples, and 7 provider examples.
Selection signal
Start with GPT-5
The charts below split 17 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-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Claude Haiku 4.5 | GPT-5 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 16.0 pts | 84.0 pts |
| Benchmark category leads | 0 categories | 4 categories |
| Operational advantages | Cheapest input price, Average speed, First-token latency, Provider coverage | Free providers |
| Context window | 200K tokens | 400K tokens |
| Max output | 64K tokens | 128K 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-5 |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Released | Oct 2025 | Aug 2025 |
| Parameters | No data | No data |
| Tokenizer | Claude | GPT |
| Knowledge cutoff | No data | 2024-09-30 |
| OpenRouter ID | anthropic/claude-haiku-4.5 | openai/gpt-5 |
| References | No data | No data |
This report only uses LMSpeed data for Claude Haiku 4.5 and GPT-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Claude Haiku 4.5
Claude Haiku 4.5 has these operational advantages: Cheapest input price, Average speed, First-token latency, Provider coverage.
GPT-5
GPT-5 is stronger in benchmark categories (Agents, Coding, Reasoning, Math) and operational dimensions (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
45.9
Avg. score
GPT-5
51.9
GPT-5 leads by 2.8
GPT-5 leads by 2.2
GPT-5 leads by 4.0
GPT-5
GPT-5 leads by 15.9
No data
No data
GPT-5
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Claude Haiku 4.5
winner$1.00/M
Rank #98/162 · confidence 4
GPT-5
$1.25/M
Rank #107/162 · confidence 4
Claude Haiku 4.5
winner$2.00/M
Rank #101/162 · confidence 4
GPT-5
$3.44/M
Rank #117/162 · confidence 4
Claude Haiku 4.5
winner$5.00/M
Rank #104/162 · confidence 4
GPT-5
$10.00/M
Rank #120/162 · confidence 4
Claude Haiku 4.5
80.0%
Rank #61/125 · confidence 4
GPT-5
winner80.6%
Rank #57/125 · confidence 4
Claude Haiku 4.5
64.6%
Rank #131/188 · confidence 4
GPT-5
winner67.3%
Rank #121/188 · confidence 4
Claude Haiku 4.5
4.3%
Rank #150/187 · confidence 4
GPT-5
winner5.4%
Rank #132/187 · confidence 4
Claude Haiku 4.5
51.1%
Rank #59/115 · confidence 4
GPT-5
winner55.8%
Rank #49/115 · confidence 4
Claude Haiku 4.5
34.4%
Rank #115/185 · confidence 4
GPT-5
winner38.8%
Rank #83/185 · confidence 4
Claude Haiku 4.5
1147.0
Rank #51/66 · confidence 1 · eval date 2025-10-15
GPT-5
winner1209.0
Rank #40/66 · confidence 1 · eval date 2025-08-07
Claude Haiku 4.5
winner16.0
Rank #16/20 · confidence 1 · eval date 2025-10-15
GPT-5
8.5
Rank #20/20 · confidence 1 · eval date 2025-08-07
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Haiku 4.5 | GPT-5 |
|---|---|---|
| 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-5 |
|---|---|---|
20 tests | Claude Haiku 4.5 speed / latency 112 tok/s / 1733ms input / output No data | GPT-5 speed / latency 102 tok/s / 948ms input / output No data |
20 tests | Claude Haiku 4.5 speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 95 tok/s / 1234ms input / output No data |
10 tests | Claude Haiku 4.5 speed / latency 68 tok/s / 4647ms input / output No data | GPT-5 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-5 speed / latency 46 tok/s / 6577ms input / output No data |
5 tests | Claude Haiku 4.5 speed / latency 109 tok/s / 2221ms input / output No data | GPT-5 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-5 gpt-5 speed / latency No data input / output $0/M | |
Claude Haiku 4.5 claude-haiku-4-5 speed / latency No data input / output $0/request | GPT-5 gpt-5-chat-latest speed / latency No data input / output $0/request |
Weighted outcome: GPT-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 modeReasoning |
|---|
