Phi-4 for fine-tuning
Phi-4 is ranked #5 on LLMDex's llms for fine-tuning ranking out of 7 models we track for this use case. Below, the specific reasons it slots where it does, and when you should reach for an alternative.
Updated
At a glance
- Rank
- #5 of 7
- Context
- 16K tokens
- Output / 1M
- Pricing not published
- Released
- Dec 2024
Why Phi-4 fits this task
Three things about Phi-4 that map directly onto what this task rewards: Exceptional quality at 14B parameters; MIT license, clean commercial use. Beyond the task-specific fit, Phi-4 also brings strong on math, both of which compound when the workload broadens.
The criteria this task rewards
LLMDex ranks best llms for fine-tuning on 5 criteria , these are the axes the ranking uses, in priority order:
- Sample efficiency (quality lift per 1k examples)
- Catastrophic forgetting resistance
- LoRA / QLoRA support quality
- License compatibility for fine-tuned-derivative deployment
- Tooling maturity (Axolotl, Unsloth, TRL)
How Phi-4 scores on each axis
Where Phi-4 costs you: short 16k context. For most teams this is acceptable on this workload, the value of the strengths above outweighs the cost. For cost-bound workloads or teams with strict latency budgets, run an eval against the next two ranked models on real data before committing.
Strengths that pay off here
- Exceptional quality at 14B parameters
- MIT license, clean commercial use
- Strong on math
Tracked weaknesses
- Short 16k context
- No vision
When to pick something else
If you can pay slightly more or accept slightly different tradeoffs, Qwen2.5-7B from Alibaba ranks one position higher and tends to win on the hardest cases. Small Qwen, practical default for laptop and edge inference.
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Other models for fine-tuning
- Llama 4 8B for fine-tuning
Meta's small Llama 4, built for on-device and edge inference.
Read guide - Llama 4 70B for fine-tuning
Meta's mid-tier Llama 4, the practical workhorse for self-hosted deployments.
Read guide - Qwen2.5-72B for fine-tuning
The previous-generation Qwen flagship, still widely deployed for stability.
Read guide - Qwen2.5-7B for fine-tuning
Small Qwen, practical default for laptop and edge inference.
Read guide - Mistral Nemo for fine-tuning
12B model co-built with Nvidia, strong small-model multilingual performance.
Read guide
Phi-4 for other use cases
Direct comparisons
Frequently asked
Is Phi-4 good for fine-tuning?
Phi-4 is ranked #5 on LLMDex's fine-tuning list. Microsoft's 14B model, exceptional quality-per-parameter via curated synthetic training data.How much does Phi-4 cost for fine-tuning?
Microsoft has not published per-token pricing for Phi-4 at the time of writing.What's a cheaper alternative to Phi-4 for fine-tuning?
The next ranked model on this task is Mistral Nemo. Compare both before committing.When should I NOT use Phi-4 for fine-tuning?
Tracked weakness: Short 16k context. If that constraint is binding for your workload, the next-ranked model on this task is the safer pick.
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