
Provides direct API access to Google's Gemini models with generous free prototyping tiers, but lacks OpenAI's ecosystem breadth.

Cortex Labs records 3,594 monthly visits with +15.6% month-over-month growth and Contact for Pricing, Free pricing. OpenAI Platform records 234,678,639 monthly visits with -9.6% growth and Paid pricing.

Open-source blockchain where AI models run on-chain inside smart contracts
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | cortexlabs.ai | openai.com |
| Pricing Model | Contact for Pricing, Free | Paid |
| Monthly Visits | 3.59K (3,594) | 234.68M (234,678,639) |
| MoM Traffic Delta |
| +486 (+15.6%) |
| -24.78M (-9.6%) |
| Primary Market & Share | 🇺🇸 United States (82.6%) | 🇺🇸 United States (25.4%) |
|---|
| Direct Visits / mo | 1.43K | 105.1M |
|---|
| User Rating | 4.2 | 4.8 |
|---|
| Supported Platforms | Website | Website |
|---|

Open-source blockchain where AI models run on-chain inside smart contracts
An EVM-compatible execution environment that adds on-chain AI inference, using the GPU instead of the CPU to run nontrivial machine learning models.
Produces identical AI inference results across heterogeneous computing hardware, which is what allows AI to be executed on-chain without an off-chain oracle.
Quantization and integer-only inference techniques that make model execution efficient and reproducible inside a blockchain environment.
A zkRollup solution that aggregates side-chain transitions into a single main-chain transaction, raising TPS and lowering per-transaction fees.

Enterprise developer platform and API for deploying GPT-6 Astra, Sol, Luna, and realtime multimodal agents.
Spanning GPT-6 Astra ($10/$50 per MTok), GPT-6.1 Sol ($2/$10), GPT-6.1 Terra ($1/$5), and GPT-6 Luna ($0.10/$0.50), all with a 1,050,000-token context window and 128K max output.
Tune thinking token budgets per API request across six granularity levels (`none`, `low`, `medium`, `high`, `xhigh`, `max`) to balance latency, accuracy, and cost.
Combine model inference with hosted web search, file search, function calling, and autonomous GUI computer-use actions in a single stateful API call.
Build ultra-low-latency multimodal voice agents billed per second ($0.05/minute) without rounding up to whole minutes.

Provides direct API access to Google's Gemini models with generous free prototyping tiers, but lacks OpenAI's ecosystem breadth.


Free / Open-sourceAlibaba Cloud's 4th-generation multimodal AI assistant and foundation model lineup (Qwen4-Max, Qwen4-Plus, Qwen4-Flash & open-weight Qwen4-27B) with 1M context.

Unifies hundreds of third-party models under a single API key, offering greater model choice than OpenAI's curated catalog.

Provides developer APIs for Zhipu AI's proprietary GLM models, serving as an alternative enterprise foundation model stack.

Free / Open-sourceGoogle's family of lightweight, open-weight AI models


Ultra-fast AI inference on the LPU and LPX platform

SpecialistOptimized for lightning-fast serverless execution of generative media and image models, rather than general text LLMs.
Free / Open-sourceOpen-source model and dataset hub with one-click online demos

Specializes in high-performance serverless inference and dedicated GPU clusters for open-source models, bypassing closed commercial restrictions.

SpecialistFocuses heavily on running and fine-tuning open-source vision and language models via simple APIs, unlike OpenAI's hosted closed models.
One OpenAI-compatible API for 500+ image, video, audio, and LLM models

SpecialistDelivers ultra-low-cost serverless inference for open-weight models, though with fewer enterprise orchestration tools than OpenAI.
Provides direct API access to Google's Gemini models with generous free prototyping tiers, but lacks OpenAI's ecosystem breadth.
Free / Open-sourceAlibaba Cloud's 4th-generation multimodal AI assistant and foundation model lineup (Qwen4-Max, Qwen4-Plus, Qwen4-Flash & open-weight Qwen4-27B) with 1M context.
Unifies hundreds of third-party models under a single API key, offering greater model choice than OpenAI's curated catalog.
Provides developer APIs for Zhipu AI's proprietary GLM models, serving as an alternative enterprise foundation model stack.
Free / Open-sourceGoogle's family of lightweight, open-weight AI models
SpecialistOptimized for lightning-fast serverless execution of generative media and image models, rather than general text LLMs.
Free / Open-sourceOpen-source model and dataset hub with one-click online demos
Specializes in high-performance serverless inference and dedicated GPU clusters for open-source models, bypassing closed commercial restrictions.
SpecialistFocuses heavily on running and fine-tuning open-source vision and language models via simple APIs, unlike OpenAI's hosted closed models.
One OpenAI-compatible API for 500+ image, video, audio, and LLM models