Ultra-fast AI code completion with a 1M-token context window for large codebases
Supermaven is an AI code completion tool built with a proprietary architecture optimised for speed and a 1-million-token context window — enabling it to process large codebases in context without truncation. Founded by Jacob Jackson (original creator of TabNine), Supermaven focuses on the completion experience specifically: high-quality multi-line suggestions with the lowest latency in the category.
Supermaven is a strong fit if its core strengths match your workflow, budget, and support needs. Use the quick signals below before opening the full review.
Supermaven's design priority is speed. Its custom sequence model architecture is optimised for completion latency rather than the broadest feature set — the result is AI code suggestions that appear faster than any comparable tool, with a context window large enough to hold an entire large codebase.
Supermaven's 1M-token context window is the largest available in AI code completion. Most completion tools process a few thousand tokens of context — recent file content and a small window of project context. Supermaven can load an entire large codebase into context, enabling suggestions that reference code patterns from across the full project rather than the immediate vicinity of the cursor.
Supermaven's custom architecture produces suggestions in 50–100ms — noticeably faster than the 200–500ms latency common in cloud-based AI completion tools. For developers who type quickly and find AI completion delays disruptive to flow, Supermaven's responsiveness maintains the sense that the AI is completing thought alongside rather than lagging behind.
Supermaven does not provide AI chat, refactoring commands, or multi-file editing. It is purely an autocomplete tool, and its design choices optimise specifically for that use case. Developers who want a chat interface, inline edit commands, or file-level operations should pair Supermaven with a chat-capable tool or switch to a more comprehensive option like Cursor. For developers who primarily want the best possible autocomplete, Supermaven's focused scope is a feature rather than a limitation.
Score: 7.8/10 — Fastest AI code completion with the largest context window; completion-only scope means no chat or multi-file editing capabilities.
Free
Free billed annually
$10/mo
$100/mo billed annually
Supermaven is best for Developers who find GitHub Copilot's suggestions too slow or want faster completion response for their typing speed, Engineers working in large codebases where other tools' context windows truncate important context, Developers who want AI completion with maximum speed and context as a pure autocomplete tool without chat overhead.
Yes. Supermaven currently lists a free plan in ToolRankr data.
It has a free plan.
Supermaven is reviewed using ToolRankr's scoring model for ease of use, value, features, support, and overall quality. Affiliate links may earn a commission, but sponsored labels do not change editorial scoring.
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