6 models
Ranked by SWE-Atlas Codebase QnA
Reasoning Tools JSON Open weights 59.8

Multimodal Kimi workhorse for agent loops, coding tasks, and visual context

moonshotai/kimi-k2.6 2026-04-20 262.144K context $0.95/M input $4/M output
69 providers
Reasoning Tools Open weights 58.0

Muse Spark Open is an 816B total / 42B active open-weight multimodal reasoning model from Meta for coding and long-horizon agentic work, with 1M-token context.

meta/muse-spark-open 2026-10-15 1.04858M context $1.25/M input $4.25/M output
14 providers
Reasoning Tools JSON 46.2

Muse Spark 1.2 is a coding-focused update to Muse Spark 1.1 with improvements in code generation, complex debugging, codebase understanding, and end-to-end developer workflows.

meta/muse-spark-1.2 2026-08-05 1.04858M context $1.25/M input $4.25/M output
18 providers
Reasoning Tools JSON 45.6

Reasoning-first Gemini preview for agentic coding and complex problem solving

google/gemini-3.1-pro-preview 2026-02-19 1.04858M context $2/M input $12/M output
37 providers
Reasoning Tools Open weights 13.1

Earlier Kimi frontier model for long-context agents, coding, and multimodal work

moonshotai/kimi-k2.5 2026-01-27 262.144K context $0.375/M input $2/M output
47 providers
Reasoning Tools 8.2

New Gemini flash lane bringing frontier-style multimodal reasoning to cheaper runs

google/gemini-3-flash-preview 2025-12-17 1.04858M context $0.5/M input $3/M output
28 providers