Data points: 45
The readout for GPT-5 and Kimi K2 0905, before the detailed comparison sheet.
Decision read
GPT-5
GPT-5 currently has the stronger profile, with verified wins split 3 to 0.
Evidence depth
45 data points
Includes 11 benchmark rows, 0 audit samples, and 0 provider examples.
Selection signal
Start with GPT-5
The charts below split 11 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.
Model compare GPT-5 vs Kimi K2 0905gpt-5-vs-kimi-k2-0905 | Model A GPT-5 | Model B Kimi K2 0905 |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 3 wins | 0 wins |
| Where it leads | Free providers, Provider coverage, Recent tests |
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
GPT-5
60
Avg. score
Kimi K2 0905
50.5
Selected category
Reasoning
Kimi K2 0905 leads by 8.1
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-5
winner0.88 s
Rank #24/113 · confidence 4
Kimi K2 0905
1.12 s
Rank #33/113 · confidence 4
GPT-5
winner0.88 s
Rank #32/113 · confidence 4
Kimi K2 0905
1.12 s
Rank #50/113 · confidence 4
GPT-5
winner67.2 tok/s
Rank #70/113 · confidence 4
Kimi K2 0905
37.3 tok/s
Rank #102/113 · confidence 4
GPT-5
$10.00/M
Rank #103/138 · confidence 4
Kimi K2 0905
winner$2.50/M
Rank #66/138 · confidence 4
GPT-5
$3.44/M
Rank #101/138 · confidence 4
Kimi K2 0905
winner$1.07/M
Rank #67/138 · confidence 4
GPT-5
$1.25/M
Rank #94/138 · confidence 4
Kimi K2 0905
winner$0.600/M
Rank #68/138 · confidence 4
GPT-5
80.6%
Rank #53/113 · confidence 4
Kimi K2 0905
winner81.9%
Rank #47/113 · confidence 4
GPT-5
67.3%
Rank #95/152 · confidence 4
Kimi K2 0905
winner76.7%
Rank #71/152 · confidence 4
GPT-5
5.4%
Rank #102/150 · confidence 4
Kimi K2 0905
winner6.3%
Rank #93/150 · confidence 4
GPT-5
55.8%
Rank #51/108 · confidence 4
Kimi K2 0905
winner61.0%
Rank #44/108 · confidence 4
GPT-5
winner38.8%
Rank #65/149 · confidence 4
Kimi K2 0905
30.7%
Rank #107/149 · confidence 4
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-5 | Kimi K2 0905 |
|---|---|---|
| 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 | GPT-5 | Kimi K2 0905 |
|---|---|---|
| No shared provider examples are available yet. | ||
This report only uses LMSpeed data for GPT-5 and Kimi K2 0905: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | GPT-5 | Kimi K2 0905 |
|---|---|---|
| When to choose each model | GPT-5 GPT-5 is stronger when you prioritize Free providers, Provider coverage, Recent tests. | Kimi K2 0905 Kimi K2 0905 does not clearly lead on the verified metrics here, so check provider-specific pricing before choosing. |
TL;DR: GPT-5 leads across 45 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from GPT-5 vs Kimi K2 0905 into nearby model comparisons with enough verified LMSpeed data.
| No data |
| Model metadata | GPT-5 exposes 400K tokens; notable signals: Text input, Image input, File input, Text output. | Kimi K2 0905 exposes 262.1K tokens; notable signals: Text input, Text output, Tool calling, Structured outputs. |
|---|---|---|
| Developer | OpenAI | MoonshotAI |
| Context window | 400K tokens | 262.1K tokens |
| Max output | 128K tokens | 100.4K tokens |
| Released | Aug 2025 | No data |
| Modalities | Input TextImageFile Output Text | Input Text Output Text |
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputText outputTool callingStructured outputsJSON mode |
| Parameters | No data | No data |
| Tokenizer | GPT | Other |
| Knowledge cutoff | 2024-09-30 | 2024-12-31 |
| OpenRouter ID | openai/gpt-5 | moonshotai/kimi-k2-0905 |
| References | No data | No data |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
