Data points: 115
The readout for Claude Haiku 4.5 and Claude Opus 4.6, before the detailed comparison sheet.
Decision read
Claude Haiku 4.5
Claude Haiku 4.5 currently has the stronger profile, with verified wins split 4 to 2.
Evidence depth
115 data points
Includes 8 benchmark rows, 6 audit samples, and 10 provider examples.
Selection signal
Start with Claude Haiku 4.5
The charts below split 24 high-signal samples across speed, scores, and audit health.
Model compare Claude Haiku 4.5 vs Claude Opus 4.6claude-haiku-4-5-vs-claude-opus-4-6 | Model A Claude Haiku 4.5 | Model B Claude Opus 4.6 |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 4 wins | 2 wins |
| Where it leads | Cheapest input price, Average speed, First-token latency, Free providers | Provider coverage, Recent tests |
| Model metadata | Claude Haiku 4.5 exposes 200K tokens; notable signals: Text input, Image input, File input, Text output. | Claude Opus 4.6 exposes 1M tokens; notable signals: Text input, Image input, File input, Text output. |
| Developer | Anthropic | Anthropic |
| Context window | 200K tokens | 1M tokens |
| Max output | 64K tokens | 128K tokens |
| Released | Oct 2025 | Apr 2026 |
| Modalities | Input TextImageFile Output Text | Input TextImageFile Output Text |
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
| Parameters | No data | No data |
| Tokenizer | Claude | Claude |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | anthropic/claude-haiku-4.5 | anthropic/claude-opus-4.6-fast |
| References | No data | No data |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | Claude Haiku 4.5 | Claude Opus 4.6 |
|---|---|---|
| SciCode | 34.4%#78 | 45.7%#20 |
| Time to first answer token | 0.90 s#22 | 1.44 s#34 |
| Input price | $1.00/M#26 | $5.00/M#41 |
| Time to first token | 0.90 s#32 | 1.44 s#57 |
| Output price | $5.00/M#37 | $25.00/M#47 |
| GPQA | 64.6%#96 | 84.0%#38 |
| HLE | 4.3%#93 | 18.6%#43 |
| Output speed | 103.5 tok/s#48 | 44.9 tok/s#96 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Haiku 4.5 | Claude Opus 4.6 |
|---|---|---|
BUZZWinner: Claude Opus 4.6 | Claude Haiku 4.5 claude-haiku-4-5-20251001 No audit yet | Claude Opus 4.6 claude-opus-4-6 Audit score 97 10010010088 |
VSLLMWinner: Claude Opus 4.6 | Claude Haiku 4.5 claude-haiku-4-5-20251001 No audit yet | Claude Opus 4.6 claude-opus-4-6 Audit score 94 76100100100 |
TokenessWinner: Claude Haiku 4.5 | Claude Haiku 4.5 claude-haiku-4-5 Audit score 91 7610086100 | Claude Opus 4.6 claude-opus-4-6 No audit yet |
Yuan APIWinner: Claude Opus 4.6 | Claude Haiku 4.5 claude-haiku-4-5 No audit yet | Claude Opus 4.6 claude-opus-4-6 Audit score 89 56100100100 |
Leonhard APIWinner: Claude Haiku 4.5 | Claude Haiku 4.5 claude-haiku-4.5 Audit score 84 648410088 | Claude Opus 4.6 claude-opus-4-6 Audit score 82 668478100 |
小水管 APIWinner: Claude Opus 4.6 | Claude Haiku 4.5 claude-haiku-4-5-20251001 No audit yet | Claude Opus 4.6 claude-opus-4-6 Audit score 84 728480100 |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Claude Haiku 4.5 | Claude Opus 4.6 |
|---|---|---|
OptAI25 tests | Claude Haiku 4.5 speed / latency N/A / N/A input / output No data | Claude Opus 4.6 speed / latency 43 tok/s / 2542ms input / output No data |
Kunkunout API20 tests | Claude Haiku 4.5 speed / latency N/A / N/A input / output No data | Claude Opus 4.6 speed / latency 40 tok/s / 16141ms input / output No data |
N1N20 tests | Claude Haiku 4.5 speed / latency 112 tok/s / 1733ms input / output No data | Claude Opus 4.6 speed / latency 46 tok/s / 2559ms input / output No data |
Rnglg2 API20 tests | Claude Haiku 4.5 speed / latency 160 tok/s / 2639ms input / output No data | Claude Opus 4.6 speed / latency 57 tok/s / 3926ms input / output No data |
钠 API20 tests | Claude Haiku 4.5 speed / latency N/A / N/A input / output No data | Claude Opus 4.6 speed / latency 42 tok/s / 2282ms input / output No data |
Claude Haiku 4.5 claude-haiku-4.5 speed / latency No data input / output $0/M / $0/M | Claude Opus 4.6 claude-opus-4-6 speed / latency No data input / output $5.00/M / $25.00/M | |
Claude Haiku 4.5 claude-haiku-4-5-20251001 speed / latency No data input / output $0/M / $0/M | Claude Opus 4.6 claude-opus-4-6 speed / latency No data input / output $0/M / $0/M | |
Claude Haiku 4.5 claude-haiku-4-5-20251001 speed / latency No data input / output $0/M / $0/M | Claude Opus 4.6 claude-opus-4-6 speed / latency No data input / output $0/M / $0/M | |
Claude Haiku 4.5 claude-haiku-4-5-20251001 speed / latency No data input / output $0.0003/M / $0.0014/M | Claude Opus 4.6 claude-opus-4-6-medium speed / latency No data input / output $0.0014/M / $0.0068/M | |
Claude Haiku 4.5 claude-haiku-4-5-20251001 speed / latency No data input / output $0.0068/M / $0.034/M | Claude Opus 4.6 claude-opus-4-6 speed / latency No data input / output $0.034/M / $0.171/M |
This report only uses LMSpeed data for Claude Haiku 4.5 and Claude Opus 4.6: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Claude Haiku 4.5 | Claude Opus 4.6 |
|---|---|---|
| When to choose each model | Claude Haiku 4.5 Claude Haiku 4.5 is stronger when you prioritize Cheapest input price, Average speed, First-token latency, Free providers. | Claude Opus 4.6 Claude Opus 4.6 is stronger when you prioritize Provider coverage, Recent tests. |
TL;DR: Claude Haiku 4.5 leads across 115 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Claude Haiku 4.5 vs Claude Opus 4.6 into nearby model comparisons with enough verified LMSpeed data.
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
