MRCR
MRCR results reported for 3 models across 3 versions. Updated 2026-09-24.
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3 versions · Metric: Mean sequence-matcher ratio
| Version | Released | Models | Results |
|---|---|---|---|
| MRCR v2 8-needle 256K–512K (o200k_base)Latest | September 2, 2026 | 2 | 2 |
| MRCR v2 8-needle 512K–1M (o200k_base) | September 2, 2026 | 2 | 2 |
| MRCR v2 8 needles 128K–256K — GPT-5.2 evaluation | December 11, 2025 | 1 | 1 |
Recently reported results: MRCR v2 8-needle 256K–512K (o200k_base)
Latest version: MRCR v2 8-needle 256K–512K (o200k_base)
| Model | Score | Source |
|---|---|---|
| Muse Spark 1.2 (xhigh) | 66.3% | dev.meta.ai for Muse Spark 1.2 (xhigh) on MRCR v2 8-needle 256K–512K (o200k_base) (opens in a new tab)Mean sequence-matcher ratioReported Model pageMetaSelf-reportedRecord for Muse Spark 1.2 on MRCR v2 8-needle 256K–512K (o200k_base) |
| Muse Spark 1.3 (max) | 98.5% | dev.meta.ai for Muse Spark 1.3 (max) on MRCR v2 8-needle 256K–512K (o200k_base) (opens in a new tab)Mean sequence-matcher ratioReported Model pageMetaSelf-reportedRecord for Muse Spark 1.3 on MRCR v2 8-needle 256K–512K (o200k_base) |