Fireworks AI vs Together AI

Fireworks AI focuses on inference speed and training flexibility. It processes over 30 trillion tokens daily and offers Serverless 2.0 with Priority, Fast, and Standard tiers via a single API. Its inference engine delivers 3x speedups and sub-second latency, crucial for coding assistants like Cursor and Notion. Fireworks also provides full-spectrum training (guided, config-led, custom RL) with Multi-LoRA support, and exclusive early access to models like GLM 5.2, Qwen 3.7 Plus, and MiniMax M3. Notably, it offers managed training infrastructure for GLM 5.2 itself. Together AI counters with serverless inference for 100+ open-source models and batch inference up to 30B tokens per model. It boasts FlashAttention-4 and ATLAS kernel collections for 31% more TPS than TensorRT-LLM. Together AI also offers dedicated GPU clusters (GB300, GB200, B200, H200, H100), fine-tuning with research-backed techniques, managed storage with zero egress fees, sandbox dev environments via CodeSandbox SDK, and ISO 27001:2022 certification. Its model library includes DeepSeek V4 Pro, Qwen3.7-Max, and Llama 4 Maverick. Fireworks lacks a no-code GUI and sandboxed dev environments, while Together AI may not provide day-0 access to the very latest models.

Fireworks AI operates on a pay-per-token model for serverless inference (e.g., GLM 5.2 launch with pay-per-token pricing) and will transition to prepaid billing starting July 1, 2026. It also offers on-demand dedicated GPU deployments and reserved capacity with guaranteed quotas. This pricing suits high-volume, latency-sensitive workloads but may lead to unpredictable costs for variable traffic. Together AI has a freemium model: a free tier for experimentation, pay-as-you-go for serverless inference, and dedicated plans for GPU clusters with minimum commitments. Its batch inference is priced per token, with no mention of prepaid or reserved capacity. Together AI's zero egress fees on managed storage can reduce total costs for large datasets. For budget-sensitive users, Together AI's free tier is attractive, while Fireworks' upcoming prepaid model might appeal to planned high-traffic projects. Both platforms require careful budget management for large-scale production.