DeepSeek V4.1 Flash
The value champion: $0.26 per index task, with a LiveBench design score of 83.4 that matches Opus
Benchmark scores
How it is measured →Ranked 13 · bars are scaled to the field maximum for that benchmark.
| Benchmarks | Score | Vs. best in field | Gap |
|---|---|---|---|
| AA Intelligence Index v5 Intelligence index | 32.5 | 55% | −26.9 pts |
| AA Intelligence Index v4.3.2 Intelligence index (legacy) | 45.1 | 78% | −12.5 pts |
| GPQA Diamond Graduate-level science reasoning | 89.8 | 93% | −6.6 pts |
| Terminal-Bench 4.0 Terminal-agent tasks | 19.7 | 30% | −45.5 pts |
| LiveBench Design Document generation (DOCX/PPT/PDF) | 83.4 | 96% | −3.5 pts |
| Vals Index Vals composite index | 50.9 | 70% | −22.2 pts |
Assessment
A 552B backbone with 8B(prefill)/16B(decode) active, 1M context and an MIT licence with no commercial restrictions. AA Intelligence Index v5 32.5 is first among open models, and a LiveBench design score of 83.4 is only 3.5 points behind Opus 5.5's 86.9 — at 1/17 the price. Cache hits cost $0.003 off-peak, the deepest cache discount in the industry. Note the 2× gap between peak and off-peak.
At the same price
The four models closest on blended price, side by side.
| Model | v5 | Blended | tok/s | Score gap |
|---|---|---|---|---|
| MiMo-V2.6 Pro Open weightsXiaomi | 30.0 | $0.61 | 81 | -2.5 |
| MiniMax M3.1 FlashMiniMax | 29.0 | $0.26 | 118 | -3.5 |
| Claude Haiku 5.5Anthropic | 36.2 | $0.20 | 235 | +3.7 |
| GLM-5.3 Open weightsZ.ai | 32.0 | $1.00 | 77 | -0.5 |
Compare side by side
Line it up against other models on price, speed and every benchmark.
The comparison tool lines up to 4 models side by side with switchable normalisation — built for purchasing decisions.
Open the comparison tool → Back to leaderboard