Data points: 95
Model compare
The readout for Claude 3 Haiku and Claude Sonnet 4.6, before the detailed comparison sheet.
Weighted outcome: Claude Sonnet 4.6. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
Claude Sonnet 4.6
Claude Sonnet 4.6 has the higher weighted result; Model A / B score 0 to 100.
Evidence depth
95 data points
Includes 16 benchmark rows, 0 audit samples, and 6 provider examples.
Selection signal
Start with Claude Sonnet 4.6
The charts below split 22 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 3 Haiku and Claude Sonnet 4.6: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Claude 3 Haiku | Claude Sonnet 4.6 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 0.0 pts | 100.0 pts |
| Benchmark category leads | 0 categories | 6 categories |
| Operational advantages | No data | Cheapest input price, Free providers, Provider coverage |
| Context window | 200K tokens | 1M tokens |
| Max output | 4.1K tokens | 128K tokens |
| Modalities | Input TextImage 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 3 Haiku | Claude Sonnet 4.6 |
|---|---|---|
| Developer | Anthropic | Anthropic |
| Released | Mar 2024 | Feb 2026 |
| Parameters | No data | No data |
| Tokenizer | Claude | Claude |
| Knowledge cutoff | 2023-08-31 | No data |
| OpenRouter ID | anthropic/claude-3-haiku | anthropic/claude-sonnet-4.6 |
| References | No data | No data |
This report only uses LMSpeed data for Claude 3 Haiku and Claude Sonnet 4.6: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Claude 3 Haiku
Claude 3 Haiku does not clearly lead in the benchmark or operational dimensions shared by both models.
Claude Sonnet 4.6
Claude Sonnet 4.6 is stronger in benchmark categories (Agents, Coding, Reasoning, Knowledge, Math) and operational dimensions (Cheapest input price, Free providers, Provider coverage).
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 3 Haiku
37.5
Avg. score
Claude Sonnet 4.6
53.2
Claude Sonnet 4.6 leads by 15.6
Claude Sonnet 4.6 leads by 23.6
Claude Sonnet 4.6 leads by 14.7
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Claude 3 Haiku
winner$0.250/M
Rank #36/162 · confidence 4
Claude Sonnet 4.6
$3.00/M
Rank #137/162 · confidence 4
Claude 3 Haiku
winner$0.500/M
Rank #40/162 · confidence 4
Claude Sonnet 4.6
$6.00/M
Rank #137/162 · confidence 4
Claude 3 Haiku
winner$1.25/M
Rank #50/162 · confidence 4
Claude Sonnet 4.6
$15.00/M
Rank #136/162 · confidence 4
Claude 3 Haiku
37.4%
Rank #180/188 · confidence 4
Claude Sonnet 4.6
winner87.5%
Rank #31/188 · confidence 4
Claude 3 Haiku
3.9%
Rank #165/187 · confidence 4
Claude Sonnet 4.6
winner30.0%
Rank #31/187 · confidence 4
Claude 3 Haiku
21.0
Rank #87/89 · confidence 1 · eval date 2024-03-01
Claude Sonnet 4.6
winner57.7
Rank #63/89 · confidence 3 · eval date 2026-02-01
Claude 3 Haiku
18.6%
Rank #177/185 · confidence 4
Claude Sonnet 4.6
winner46.8%
Rank #29/185 · confidence 4
Claude 3 Haiku
18.6
Rank #95/96 · confidence 1 · eval date 2024-03-01
Claude Sonnet 4.6
winner46.9
Rank #33/96 · confidence 3 · eval date 2026-02-01
Claude 3 Haiku
17.2
Rank #81/90 · confidence 1 · eval date 2024-03-01
Claude Sonnet 4.6
winner38.0
Rank #29/90 · confidence 3 · eval date 2026-02-01
Claude 3 Haiku
winner78.2
Rank #43/90 · confidence 1 · eval date 2024-03-01
Claude Sonnet 4.6
65.9
Rank #57/90 · confidence 3 · eval date 2026-02-01
Claude 3 Haiku
3.9
Rank #99/99 · confidence 1 · eval date 2024-03-01
Claude Sonnet 4.6
winner35.9
Rank #43/99 · confidence 3 · eval date 2026-02-01
Claude 3 Haiku
37.4
Rank #96/96 · confidence 1 · eval date 2024-03-01
Claude Sonnet 4.6
winner79.9
Rank #63/96 · confidence 3 · eval date 2026-02-01
Claude 3 Haiku
3.9
Rank #91/96 · confidence 1 · eval date 2024-03-01
Claude Sonnet 4.6
winner13.2
Rank #63/96 · confidence 3 · eval date 2026-02-01
Claude 3 Haiku
30.8
Rank #57/57 · confidence 1 · eval date 2024-03-01
Claude Sonnet 4.6
winner70.6
Rank #40/57 · confidence 3 · eval date 2026-02-01
Claude 3 Haiku
36.1
Rank #80/86 · confidence 1 · eval date 2024-03-01
Claude Sonnet 4.6
winner41.2
Rank #69/86 · confidence 3 · eval date 2026-02-01
Claude 3 Haiku
21.1
Rank #79/84 · confidence 1 · eval date 2024-03-01
Claude Sonnet 4.6
winner79.5
Rank #55/84 · confidence 3 · eval date 2026-02-01
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude 3 Haiku | Claude Sonnet 4.6 |
|---|---|---|
| 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 3 Haiku | Claude Sonnet 4.6 |
|---|---|---|
10 tests | Claude 3 Haiku claude-3-haiku-20240307 speed / latency N/A / N/A input / output $0.030/M/$0.152/M | Claude Sonnet 4.6 claude-sonnet-4-6 speed / latency 41 tok/s / 3714ms input / output $0.664/M/$3.32/M |
0 tests | Claude 3 Haiku speed / latency N/A / N/A input / output No data | Claude Sonnet 4.6 speed / latency N/A / N/A input / output No data |
0 tests | Claude 3 Haiku speed / latency N/A / N/A input / output No data | Claude Sonnet 4.6 speed / latency N/A / N/A input / output No data |
0 tests | Claude 3 Haiku speed / latency N/A / N/A input / output No data | Claude Sonnet 4.6 speed / latency N/A / N/A input / output No data |
0 tests | Claude 3 Haiku speed / latency N/A / N/A input / output No data | Claude Sonnet 4.6 speed / latency N/A / N/A input / output No data |
Claude 3 Haiku claude-3-haiku-20240307 speed / latency No data input / output $0.034/M/$0.171/M | Claude Sonnet 4.6 claude-sonnet-4-6 speed / latency No data input / output $0.822/M |
Weighted outcome: Claude Sonnet 4.6. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Input
Output
| Features | Text inputImage inputText outputTool calling | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
Claude Sonnet 4.6 leads by 30.2
Claude Sonnet 4.6 leads by 17.0
No data
Claude Sonnet 4.6
Claude Sonnet 4.6 leads by 1.7
