Data points: 59
Model compare
The readout for Claude Opus 4.6 and GPT-5.6 Terra Pro, before the detailed comparison sheet.
Weighted outcome: Claude Opus 4.6. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
Claude Opus 4.6
Claude Opus 4.6 has the higher weighted result; Model A / B score 100 to 0.
Evidence depth
59 data points
Includes 0 benchmark rows, 0 audit samples, and 4 provider examples.
Selection signal
Start with Claude Opus 4.6
The charts below split 4 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 Opus 4.6 and GPT-5.6 Terra Pro: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Claude Opus 4.6 | GPT-5.6 Terra Pro |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 100.0 pts | 0.0 pts |
| Benchmark category leads | 0 categories | 0 categories |
| Operational advantages | Cheapest input price, Free providers, Provider coverage | No data |
| Context window | 1M tokens | 1.1M tokens |
| Max output | 128K 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 Opus 4.6 | GPT-5.6 Terra Pro |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Released | Feb 2026 | Jul 2026 |
| Parameters | No data | No data |
| Tokenizer | Claude | GPT |
| Knowledge cutoff | No data | 2026-02-16 |
| OpenRouter ID | anthropic/claude-opus-4.6 | openai/gpt-5.6-terra-pro |
| References | No data | No data |
This report only uses LMSpeed data for Claude Opus 4.6 and GPT-5.6 Terra Pro: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Claude Opus 4.6
Claude Opus 4.6 has these operational advantages: Cheapest input price, Free providers, Provider coverage.
GPT-5.6 Terra Pro
GPT-5.6 Terra Pro does not clearly lead in the benchmark or operational dimensions shared by both models.
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 Opus 4.6
53.4
Avg. score
GPT-5.6 Terra Pro
-
Claude Opus 4.6
Claude Opus 4.6
Claude Opus 4.6
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
No shared professional benchmark scores are available yet.
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Opus 4.6 | GPT-5.6 Terra Pro |
|---|---|---|
| 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 Opus 4.6 | GPT-5.6 Terra Pro |
|---|---|---|
5 tests | Claude Opus 4.6 claude-opus-4-6 speed / latency 45 tok/s / 2276ms input / output $0.258/M/$1.29/M | GPT-5.6 Terra Pro openai/gpt-5.6-terra-pro speed / latency N/A / N/A input / output $1.03/M/$6.18/M |
0 tests | Claude Opus 4.6 speed / latency N/A / N/A input / output No data | GPT-5.6 Terra Pro speed / latency N/A / N/A input / output No data |
0 tests | Claude Opus 4.6 claude-opus-4-6 speed / latency N/A / N/A input / output $0.822/M/$4.11/M | GPT-5.6 Terra Pro gpt-5.6-terra-pro speed / latency N/A / N/A input / output $30.82/M |
0 tests | Claude Opus 4.6 speed / latency N/A / N/A input / output No data | GPT-5.6 Terra Pro speed / latency N/A / N/A input / output No data |
Weighted outcome: Claude Opus 4.6. 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 |
|---|
Claude Opus 4.6
Claude Opus 4.6
Claude Opus 4.6
Claude Opus 4.6
Claude Opus 4.6
