Tenderloin
Tenderloin is the most tender beef cut, taken from the psoas major muscle that sits under the spine of the carcass. Because the muscle does almost no work, it has very fine grain and minimal connective tissue, but it also carries less intramuscular fat than the ribeye or strip, which is why tenderloin scores lower on marbling-driven grades despite being prized for its tenderness.
Tenderloin is the most tender beef cut, taken from the psoas major muscle that sits under the spine of the carcass. Because the muscle does almost no work, it has very fine grain and minimal connective tissue, but it also carries less intramuscular fat than the ribeye or strip, which is why tenderloin scores lower on marbling-driven grades despite being prized for its tenderness.
The tenderloin is a long, tapered muscle that runs along the inside of the spine, spanning the short loin and sirloin primals. It is sliced into "filet mignon" medallions toward the small end, and into chateaubriand or whole-roasts in the middle. Because the psoas major is essentially a non-load-bearing muscle, the grain is exceptionally fine and there is almost no chew, the cut is famous for being "fork-tender".
The trade-off: lean color and marbling on tenderloin are usually lower than on the ribeye or strip from the same carcass. A USDA Prime carcass produces a Prime ribeye but the tenderloin from that same carcass typically shows Choice-level marbling at best. Cooks compensate with bacon-wrap, butter-baste, or sauce, the cut is supplementary to the cooking method rather than a marbling showcase.
Also known as: Filet mignon (medallions), Filet (US), Eye fillet (Australia/NZ), Solomillo (Spain), Filé mignon (Brazil), Lomo (LatAm).
What good quality looks like
- Fine, smooth grain, the cross-section should look almost uniform, with very thin connective tissue lines
- Lean color slightly darker than ribeye on average; bright red is preferred but tenderloin runs a touch deeper
- Light, scattered marbling, denser marbling indicates a high-grade carcass, but tenderloin will never marble like a ribeye
- Minimal external fat, the surrounding silver skin and fat are usually trimmed by the butcher
- Even, cylindrical shape (especially toward the center / chateaubriand portion); irregular shapes suggest improper trimming
How to cook it
- Best cooked fast over high heat for the surface, then pulled at medium-rare (54-58°C / 130-136°F) to preserve the cut's natural softness
- Wrap with bacon, sear in butter, or finish with a sauce (béarnaise, peppercorn, blue cheese), the cut is lean and benefits from added fat
- Cuts thicker than 1.5 inches / 4 cm benefit from reverse-searing to avoid an overcooked exterior
- Whole tenderloin (chateaubriand) is roasted at moderate heat (180°C / 350°F) and rested at least 10 minutes
Frequently asked
Is tenderloin the same as filet mignon?
Filet mignon is a portion cut from the small end of the tenderloin, typically 1.5 to 2 inches thick, served as a single portion. Whole tenderloin is the entire muscle; filet mignon is the steak. All filet mignon is from the tenderloin, but not all tenderloin is sliced as filet mignon (some becomes chateaubriand, tournedos, or beef Wellington).
Why does tenderloin grade lower than ribeye?
Carcass grading is based primarily on marbling at the ribeye, but the psoas major muscle (tenderloin) produces less intramuscular fat than the longissimus (ribeye). A USDA Prime carcass's tenderloin will typically have Choice-level marbling at most. The tenderloin is prized for tenderness, not marbling.
Is tenderloin worth the price?
It depends on what you value. Tenderloin is the most tender cut but one of the least flavorful, the marbling that drives flavor is highest in ribeye and strip. If you value texture and a delicate eating experience, tenderloin is unmatched. If you value beefy flavor, a Prime ribeye or strip at the same price-per-pound delivers more.
How can I tell good tenderloin from bad?
Look for fine, smooth grain in the cross-section, bright but slightly deep red color, even thickness, and minimal silver skin. Visible marbling is a bonus but lighter marbling is normal for this cut. MeatGrader scores tenderloin against the same four factors but adjusts factor weights to recognize that high marbling is rare on this muscle.