Data points: 110
The readout for Claude Opus 4.5 and Claude Opus 4.6, before the detailed comparison sheet.
Decision read
Tie
Tie currently has the stronger profile, with verified wins split 2 to 2.
Evidence depth
110 data points
Includes 8 benchmark rows, 5 audit samples, and 10 provider examples.
Selection signal
Tie
The charts below split 23 high-signal samples across speed, scores, and audit health.
Model compare Claude Opus 4.5 vs Claude Opus 4.6claude-opus-4-5-vs-claude-opus-4-6 | Model A Claude Opus 4.5 | Model B Claude Opus 4.6 |
|---|---|---|
| Overall leader | Tie | Tie |
| Verified metric wins | 2 wins | 2 wins |
| Where it leads | Average speed, First-token latency | Provider coverage, Recent tests |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | Claude Opus 4.5 | Claude Opus 4.6 |
|---|---|---|
| SciCode | 47.0%#15 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Opus 4.5 | Claude Opus 4.6 |
|---|---|---|
Winner: Claude Opus 4.6 | Claude Opus 4.5 claude-opus-4-5-20251101 No audit yet | Claude Opus 4.6 claude-opus-4-6 |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Claude Opus 4.5 | Claude Opus 4.6 |
|---|---|---|
25 tests | Claude Opus 4.5 speed / latency N/A / N/A input / output No data |
This report only uses LMSpeed data for Claude Opus 4.5 and Claude Opus 4.6: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Claude Opus 4.5 | Claude Opus 4.6 |
|---|---|---|
| When to choose each model | Claude Opus 4.5 Claude Opus 4.5 is stronger when you prioritize Average speed, First-token latency. | Claude Opus 4.6 Claude Opus 4.6 is stronger when you prioritize Provider coverage, Recent tests. |
TL;DR: Tie leads across 110 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Claude Opus 4.5 vs Claude Opus 4.6 into nearby model comparisons with enough verified LMSpeed data.
| Model metadata | Claude Opus 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 | Nov 2025 | Apr 2026 |
| Modalities | Input FileImageText Output Text | Input TextImageFile Output Text |
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON mode |
| Parameters | No data | No data |
| Tokenizer | Claude | Claude |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | anthropic/claude-opus-4.5 | anthropic/claude-opus-4.6-fast |
| References | No data | No data |
| Time to first answer token | 1.45 s#33 | 1.29 s#28 |
|---|
| GPQA | 81.0%#53 | 84.0%#38 |
|---|
| Input price | $5.00/M#41 | $5.00/M#41 |
|---|
| HLE | 12.9%#59 | 18.6%#43 |
|---|
| Output price | $25.00/M#47 | $25.00/M#47 |
|---|
| Time to first token | 1.45 s#57 | 1.29 s#50 |
|---|
| Blended price | $10.00/M#68 | $10.00/M#68 |
|---|
Audit score
97
VSLLMWinner: Claude Opus 4.6 | Claude Opus 4.5 claude-opus-4-5-20251101 Audit score 90 7210086100 | Claude Opus 4.6 claude-opus-4-6 Audit score 94 76100100100 |
|---|
Yuan APIWinner: Claude Opus 4.6 | Claude Opus 4.5 claude-opus-4-5 No audit yet | Claude Opus 4.6 claude-opus-4-6 Audit score 89 56100100100 |
|---|
小水管 APIWinner: Claude Opus 4.6 | Claude Opus 4.5 claude-opus-4-5-20251101 No audit yet | Claude Opus 4.6 claude-opus-4-6 Audit score 84 728480100 |
|---|
Omini ApiWinner: Claude Opus 4.6 | Claude Opus 4.5 claude-opus-4-5-20251101 No audit yet | Claude Opus 4.6 claude-opus-4-6 Audit score 78 70728088 |
|---|
Claude Opus 4.6
speed / latency
43 tok/s / 2542ms
input / output
No data
Kunkunout API20 tests | Claude Opus 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 Opus 4.5 speed / latency 56 tok/s / 2598ms input / output No data | Claude Opus 4.6 speed / latency 46 tok/s / 2559ms input / output No data |
|---|
Rnglg2 API20 tests | Claude Opus 4.5 speed / latency 70 tok/s / 4078ms input / output No data | Claude Opus 4.6 speed / latency 57 tok/s / 3926ms input / output No data |
|---|
ModelPool10 tests | Claude Opus 4.5 speed / latency N/A / N/A input / output No data | Claude Opus 4.6 speed / latency 84 tok/s / 3916ms input / output No data |
|---|
Claude Opus 4.5 claude-opus-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 Opus 4.5 claude-opus-4-5-20251101 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 Opus 4.5 claude-opus-4-5-20251101 speed / latency No data input / output $0.0014/M / $0.0068/M | Claude Opus 4.6 claude-opus-4-6-medium speed / latency No data input / output $0.0014/M / $0.0068/M |
Claude Opus 4.5 c/claude-opus-4-5-20251101 speed / latency No data input / output $0.0017/M / $0.0017/M | Claude Opus 4.6 claude-opus-4-6-thinking speed / latency No data input / output $5.00/M / $25.00/M |
Claude Opus 4.5 claude-opus-4-5-20251101 speed / latency No data input / output $0.034/M / $0.171/M | Claude Opus 4.6 claude-opus-4-6 speed / latency No data input / output $0.034/M / $0.171/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
