THE AI MODEL DIRECTORY Start exploring models here

Find your ideal AI model.

From language to images, open weights to APIs. Understand capabilities and compare real costs.
Find the right engine for your next idea.

Explore AI models 2

Provider Input Output License

Discover models worth your attention

BidirLM-1B-Embedding

BidirLM

BidirLM is a family of 5 frontier bidirectional encoders, including an omnimodal variant at 2.5B, adapted from causal decoder LLMs. Contrary to contrastive-only models, BidirLM relies on a prior masking phase (MNTP) that enables state-of-the-art results on task-specific fine-tuning (NER, classification, NLI) while achieving frontier performance on embedding benchmarks (MTEB) against open-source alternatives. > *From the paper. MTEB(Multilingual, v2) below matches the paper; the LongEmbed table reports additional long-context results.* (\*) Evaluated at `max_seq_length=512`, matching the paper. The architecture supports much longer context (see the LongEmbed table below); on the MTEB leaderboard the shared LEMBPasskeyRetrieval task is scored at long context, making the leaderboard MTEB(Multilingual, v2) ~0.4 higher than this table.

Embeddings & similarity

Input Text→ Output Embedding

Price not verifiedCheck multimodal and channel pricing separately

View details ↗

CompareSource / docs ↗

BidirLM-Omni-2.5B-Embedding

BidirLM

基础档案已收录，详细介绍后续补充。可先查看厂商、分类与来源。

Basic profile indexed · More details to follow

Embeddings & similarity

Input Text→ Output Embedding

Price not verifiedCheck multimodal and channel pricing separately

View details ↗

CompareSource / docs ↗

COST EXPLORER

Great models. Clear costs.

Cost analysis

Adjust monthly token usage to compare estimated API costs.

Monthly input tokens 10 MMonthly output tokens 2 M1 M = 1 million tokens · USD
Compares base text-token rates within the same channel

Uses collected, comparable USD-per-million-token rates. Snapshots exclude cache discounts, tiers, extra reasoning output and taxes. Check current source prices.

MODEL HANDBOOK

Understand before you choose

Selection guide & FAQ

How should API prices be compared?+

Separate input, output and cache rates, then estimate the same workload. Image, audio and video rates may use items, duration or resolution rather than tokens.

Do open weights mean free commercial use?+

Not necessarily. Check each version’s license, commercial restrictions and policies. Self-hosting also incurs compute and maintenance costs.

Is the top-ranked model the best for me?+

Rankings depend on tasks, versions and methods. Compare accuracy, latency, reliability and costs on your own workload.