Data points: 55
The readout for Claude Instant 1.2 and Claude Sonnet 4, before the detailed comparison sheet.
Decision read
Claude Sonnet 4
Claude Sonnet 4 currently has the stronger profile, with verified wins split 1 to 3.
Evidence depth
55 data points
Includes 0 benchmark rows, 0 audit samples, and 8 provider examples.
Selection signal
Start with Claude Sonnet 4
The charts below split 8 high-signal samples across speed, scores, and audit health.
Model compare Claude Instant 1.2 vs Claude Sonnet 4claude-instant-1-2-vs-claude-sonnet-4 | Model A Claude Instant 1.2 | Model B Claude Sonnet 4 |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 1 wins | 3 wins |
| Where it leads | Free providers |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | Claude Instant 1.2 | Claude Sonnet 4 |
|---|---|---|
| No shared benchmark metrics are available yet. | ||
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Instant 1.2 | Claude Sonnet 4 |
|---|---|---|
| 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 Instant 1.2 | Claude Sonnet 4 |
|---|---|---|
0 tests | Claude Instant 1.2 claude-instant-1.2 speed / latency N/A / N/A input / output $0/M / $0/M |
This report only uses LMSpeed data for Claude Instant 1.2 and Claude Sonnet 4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Claude Instant 1.2 | Claude Sonnet 4 |
|---|---|---|
| When to choose each model | Claude Instant 1.2 Claude Instant 1.2 is stronger when you prioritize Free providers. | Claude Sonnet 4 Claude Sonnet 4 is stronger when you prioritize Cheapest input price, Provider coverage, Recent tests. |
TL;DR: Claude Sonnet 4 leads across 55 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Claude Instant 1.2 vs Claude Sonnet 4 into nearby model comparisons with enough verified LMSpeed data.
| Cheapest input price, Provider coverage, Recent tests |
| Model metadata | No OpenRouter metadata is available yet for this model. | Claude Sonnet 4 exposes 1M tokens; notable signals: Text input, Image input, File input, Text output. |
|---|---|---|
| Developer | Anthropic | Anthropic |
| Context window | No data | 1M tokens |
| Max output | No data | 64K tokens |
| Released | No data | May 2025 |
| Modalities | No data | Input ImageTextFile Output Text |
| Features | None listed | Text inputImage inputFile inputText outputTool callingReasoning |
| Parameters | No data | No data |
| Tokenizer | No data | Claude |
| Knowledge cutoff | No data | 2025-01-31 |
| OpenRouter ID | No data | anthropic/claude-sonnet-4 |
| References | No data | No data |
Claude Sonnet 4
claude-sonnet-4-20250514
speed / latency
N/A / N/A
input / output
$43.80/M / $219.00/M
AIGCBAR0 tests | Claude Instant 1.2 speed / latency N/A / N/A input / output No data | Claude Sonnet 4 speed / latency N/A / N/A input / output No data |
|---|
IXIOCCAPI0 tests | Claude Instant 1.2 speed / latency N/A / N/A input / output No data | Claude Sonnet 4 speed / latency N/A / N/A input / output No data |
|---|
KFCV500 tests | Claude Instant 1.2 claude-instant-1.2 speed / latency N/A / N/A input / output $0.110/M / $0.329/M | Claude Sonnet 4 claude-sonnet-4-all speed / latency N/A / N/A input / output $0.411/M / $2.05/M |
|---|
Last API0 tests | Claude Instant 1.2 speed / latency N/A / N/A input / output No data | Claude Sonnet 4 speed / latency N/A / N/A input / output No data |
|---|
Claude Instant 1.2 claude-instant-1.2 speed / latency No data input / output $1.63/M / $1.63/M | Claude Sonnet 4 claude-sonnet-4-20250514 speed / latency No data input / output $3.00/M / $15.00/M |
Claude Instant 1.2 claude-instant-1.2 speed / latency No data input / output $90.00/M / $270.00/M | Claude Sonnet 4 claude-sonnet-4-20250514 speed / latency No data input / output $3.60/M / $18.00/M |
Claude Instant 1.2 claude-instant-1.2 speed / latency No data input / output $4.00/M / $4.00/M | Claude Sonnet 4 claude-sonnet-4-20250514 speed / latency No data input / output $12.00/M / $60.00/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
