feat(engy): add engy provider

providers/engy/models/deepseek-v4-flash-0731.toml

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+# Toggle: chat_template_kwargs.thinking = true|false
+# Effort: reasoning_effort = low|high|max
+# Prices: https://api.engy.ai/v1/models; limits: authed https://engy.ai/api/v1/models (2026-08-28/30).
+# Reasoning is off unless asked; thinking=false and none suppress it 18/18.
+# engy maps effort per template (engy.ai/docs, 2026-09-19): low/medium -> low, high -> high, xhigh/max -> max.
+# Probe 2026-08-30, n=113-126/level at 64k: low, medium and high did not separate (p>=0.89);
+# high vs max p=0.0064.
+base_model = "deepseek/deepseek-v4-flash-0731"
+
+[interleaved]
+field = "reasoning_content"
+
+[[reasoning_options]]
+type = "toggle"
+
+[[reasoning_options]]
+type = "effort"
+values = ["low", "high", "max"]
+
+[cost]
+input = 0.045
+output = 0.09
+cache_read = 0.009
+
+[limit]
+context = 1_048_576
+input = 920_576
+output = 128_000

providers/engy/models/deepseek-v4.1-flash.toml

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+# Toggle: chat_template_kwargs.thinking = true|false
+# Effort: reasoning_effort = low|high|max
+# Prices: https://api.engy.ai/v1/models; limits: authed https://engy.ai/api/v1/models (2026-09-12).
+# Reasoning is off unless asked; thinking=false and none suppress it 40/40.
+# engy maps effort per template (engy.ai/docs, 2026-09-19): low/medium -> low, high -> high, xhigh/max -> max.
+# Probe 2026-09-12, n=40/level at 32k: low, medium and high did not separate (paired p>=0.04);
+# high vs max paired p=1e-04.
+base_model = "deepseek/deepseek-v4.1-flash"
+
+[interleaved]
+field = "reasoning_content"
+
+[[reasoning_options]]
+type = "toggle"
+
+[[reasoning_options]]
+type = "effort"
+values = ["low", "high", "max"]
+
+[cost]
+input = 0.04
+output = 0.08
+cache_read = 0.008
+
+[limit]
+context = 327_680
+input = 262_144
+output = 65_536

providers/engy/models/glm-5.2.toml

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+# Toggle: chat_template_kwargs.enable_thinking = true|false
+# Effort: reasoning_effort = high|max
+# Prices: https://api.engy.ai/v1/models; limits: authed https://engy.ai/api/v1/models (2026-08-28/30).
+# Live probe 2026-08-30, n=20/level at 8k: low, medium and high one rung (p>=0.38), xhigh and max
+# another (p=0.19), the rungs apart at p<=2e-07 (MWU), xhigh and max hit the cap 6/20 and 5/20;
+# toggle, none and minimal suppress reasoning 20/20.
+base_model = "zhipuai/glm-5.2"
+
+[interleaved]
+field = "reasoning_content"
+
+[[reasoning_options]]
+type = "toggle"
+
+[[reasoning_options]]
+type = "effort"
+values = ["high", "max"]
+
+[cost]
+input = 0.68
+output = 1.5
+cache_read = 0.18
+
+[limit]
+context = 262_144
+input = 229_376
+output = 32_768

providers/engy/models/glm-5.3-flash.toml

@@ -0,0 +1,27 @@
+# Effort: reasoning_effort = low|high|max
+# Prices: https://api.engy.ai/v1/models; limits: authed https://engy.ai/api/v1/models (2026-08-28/30).
+# Launch discount: page lists 0.15/0.50, billed 0.135/0.45. Served text+image, so input is narrowed.
+# "(Ox Alpha)" is the codename it was served under before the name went public; status unset.
+# Live probe 2026-08-30 at 8k, n=40 for low/medium/high, 20 for xhigh/max: low = medium (p=0.41)
+# < high (p=1.8e-05) < xhigh = max; none/minimal/enable_thinking=false measure as low; 0/320 empty.
+base_model = "zhipuai/glm-5.3-flash"
+
+[interleaved]
+field = "reasoning_content"
+
+[[reasoning_options]]
+type = "effort"
+values = ["low", "high", "max"]
+
+[cost]
+input = 0.135
+output = 0.45
+cache_read = 0.027
+
+[limit]
+context = 262_144
+input = 229_376
+output = 32_768
+
+[modalities]
+input = ["text", "image"]

providers/engy/models/glm-5.3.toml

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+# Effort: reasoning_effort = low|high|max
+# Prices: https://api.engy.ai/v1/models; limits: authed https://engy.ai/api/v1/models (2026-08-28/31).
+# Live probe 2026-08-30 at 8k, n=40 for low/medium/high, 20 for xhigh/max: low = medium (p=0.49)
+# < high (p=3.4e-06) < xhigh = max (MWU). Nothing switches it off: none, minimal and
+# enable_thinking=false measure as low; 0 of 320 empty.
+base_model = "zhipuai/glm-5.3"
+
+[interleaved]
+field = "reasoning_content"
+
+[[reasoning_options]]
+type = "effort"
+values = ["low", "high", "max"]
+
+[cost]
+input = 0.98
+output = 3.08
+cache_read = 0.18
+
+[limit]
+context = 327_680
+input = 294_912
+output = 32_768

providers/engy/models/kimi-k3.toml

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+# Toggle: chat_template_kwargs.thinking = true|false
+# Prices: https://api.engy.ai/v1/models (2026-09-03, raised 30% from 08-28); limits: authed
+# https://engy.ai/api/v1/models (2026-10-02; max_input was 983,040 on 2026-08-30; context is
+# max_input + max_output, above the lab's 1M). engy serves this text+image only, so input is narrowed.
+# Live probe 2026-08-30, n=40/level at 16k: reasoning_effort inert, every pair p>=0.61 (MWU);
+# thinking=false suppresses reasoning 40/40. temperature honoured (0 vs 1.5, 12 prompts x 3
+# replicates, 12/12, paired p=0.0005, 2026-08-31); the lab's false is Moonshot's own API.
+base_model = "moonshotai/kimi-k3"
+temperature = true
+
+[interleaved]
+field = "reasoning_content"
+
+[[reasoning_options]]
+type = "toggle"
+
+[cost]
+input = 1.95
+output = 9.75
+cache_read = 0.195
+
+[limit]
+context = 1_113_088
+input = 1_047_552
+output = 65_536
+
+[modalities]
+input = ["text", "image"]

providers/engy/models/qwen3.6-35b-a3b.toml

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+# Toggle: chat_template_kwargs.enable_thinking = true|false
+# Prices: https://api.engy.ai/v1/models; limits: authed https://engy.ai/api/v1/models (2026-08-28/30).
+# engy serves this deployment text-only, so modalities and attachment are narrowed.
+# Live probe 2026-08-31, n=36/level at 8,192 (the cap): reasoning_effort inert, every pair p>=0.39
+# (MWU); toggle and none suppress reasoning 36/36. No effort control is offered.
+base_model = "alibaba/qwen3.6-35b-a3b"
+attachment = false
+
+[interleaved]
+field = "reasoning_content"
+
+[[reasoning_options]]
+type = "toggle"
+
+[cost]
+input = 0.045
+output = 0.3
+cache_read = 0.015
+
+[limit]
+context = 208_192
+input = 200_000
+output = 8_192
+
+[modalities]
+input = ["text"]

providers/engy/models/qwen3.8-27b.toml

@@ -0,0 +1,30 @@
+# Toggle: chat_template_kwargs.enable_thinking = true|false
+# Effort: reasoning_effort = low|medium|xhigh
+# Prices: https://api.engy.ai/v1/models (2026-08-28/30); limits: authed https://engy.ai/api/v1/models (2026-09-13).
+# engy serves this deployment text+image only, so modalities.input is narrowed.
+# Live probe 2026-08-30, n=60/level at 32k: xhigh separates from low and medium (paired p<0.01), high
+# and max behave as xhigh (p>=0.87), medium vs low unsettled (p=0.44); toggle and none suppress 20/20.
+base_model = "alibaba/qwen3.8-27b"
+
+[interleaved]
+field = "reasoning_content"
+
+[[reasoning_options]]
+type = "toggle"
+
+[[reasoning_options]]
+type = "effort"
+values = ["low", "medium", "xhigh"]
+
+[cost]
+input = 0.045
+output = 0.32
+cache_read = 0.015
+
+[limit]
+context = 1_001_536
+input = 936_000
+output = 65_536
+
+[modalities]
+input = ["text", "image"]

providers/engy/provider.toml

@@ -0,0 +1,10 @@
+name = "engy"
+env = ["ENGY_API_KEY"]
+npm = "@ai-sdk/openai-compatible"
+# Raw HTTP reasoning controls (live 2026-08-30), authored per model. POST /v1/chat/completions
+# forwards chat_template_kwargs to the chat template (enable_thinking on glm-5.2 and Qwen, thinking
+# on DeepSeek and Kimi; the GLM-5.3 templates do not switch it off) and takes reasoning_effort
+# none|minimal|low|medium|high|xhigh|max; no budget field. Docs list no models; doc is pricing.
+# Limits: authed GET https://engy.ai/api/v1/models; context = max_input + max_output.
+api = "https://api.engy.ai/v1"
+doc = "https://engy.ai/pricing"