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AssemblyAI

Freemium

AssemblyAI sells speech models through an API rather than a consumer app. Developers send a file or live stream and get transcripts with timestamps, speaker labels, formatting and confidence scores; other endpoints summarize calls, detect topics and sentiment, or redact personal data. Its Universal speech models cover 99 languages, and a newer text-to-speech model targets voice agents. Billing runs per hour of audio processed, starting at roughly $0.15 per hour for pre-recorded transcription. The free tier covers about 185 hours of pre-recorded audio and 333 hours of streaming before charges begin.

Murf AI

Free trial

Murf combines a browser voiceover editor with a speech API. In the studio you paste a script, assign a voice to each paragraph, adjust pitch, pace and emphasis, then export audio for video or e-learning. It offers over 200 voices across 30+ languages, plus AI dubbing for existing footage. The API exposes text-to-speech billed per 1,000 characters, speech-to-text at $0.24 an hour, voice changing and translation, with $10 of trial credit. Studio plans start at Creator; Business adds 96 hours of generation, 48 hours of transcription and a business license for teams.

Playground AI

Freemium

Playground AI is a design tool that combines image generation with templates for logos, t-shirts, stickers, posters and social posts. You describe an idea, and the editor lays out text and graphics around it, keeping the generated image on a separate layer you can edit without starting over. It connects to several external models, including GPT Image, Nano Banana and Seedream, and each generation draws from one shared monthly credit pool. Background removal, upscaling and SVG export are included on paid plans. The free tier allows five images every three hours and three monthly model credits.

Recraft

Freemium

Recraft is an image generator aimed at designers who need assets rather than standalone pictures. Alongside raster generation it produces true vector output, including SVG icons, logos and illustrations that stay editable in design software. You can lock a brand palette, save custom styles, and reuse them across a project so separate images look related. Editing tools cover inpainting, background removal, mockups and upscaling, and a prompt-extraction feature describes an uploaded reference. The free plan is limited to personal use with public images; paid plans start at 1,000 monthly credits and add commercial rights and private generations.

FLUX

Paid

FLUX is Black Forest Labs' family of image models, reachable through an API, a browser playground or downloaded open weights. It covers text-to-image and image-to-image, with the FLUX 3 line handling prompts, reference images and outputs up to 4K. Klein versions are smaller and cheaper, and commercial licences allow fine-tuning and LoRA training on your own hardware. Developers pay per generated image rather than a subscription, with prices set by model and resolution. The playground runs in the browser, so you can test prompts before writing code; teams wanting a fixed monthly bill need to estimate volume first.

Adobe Firefly

Freemium

Adobe Firefly is Adobe's generative AI app for images, vectors, video and audio, running in the browser and on mobile. Text prompts produce images you can then edit with generative fill, expand and object removal, and the same credit balance works inside Photoshop, Illustrator and Express. Firefly also hosts partner models from Google, OpenAI and Black Forest Labs, so you can compare outputs without leaving the app. Outputs from Adobe's own models carry Content Credentials and are licensed for commercial use. A free plan gives daily generations; paid tiers add credits and app access.