diff --git a/data/claude-profile/providers/minimax-sonnet.yaml b/data/claude-profile/providers/minimax-sonnet.yaml
index a4b4026..7be6653 100644
--- a/data/claude-profile/providers/minimax-sonnet.yaml
+++ b/data/claude-profile/providers/minimax-sonnet.yaml
@@ -1,10 +1,16 @@
 name: minimax-sonnet
-display: MiniMax (Sonnet)
-model_id: claude-sonnet-4-20250514
+display: MiniMax (M2.7)
+model_id: MiniMax-M2.7
 base_url: https://api.minimax.io/anthropic
-api_key_env: ANTHROPIC_AUTH_TOKEN
+api_key_env: ANTHROPIC_API_KEY
 api_key_file: ~/.claude-secrets/minimax-auth-token
 extra_env:
+  ANTHROPIC_MODEL: MiniMax-M2.7
+  ANTHROPIC_SMALL_FAST_MODEL: MiniMax-M2.7
+  ANTHROPIC_DEFAULT_SONNET_MODEL: MiniMax-M2.7
+  ANTHROPIC_DEFAULT_OPUS_MODEL: MiniMax-M2.7
+  ANTHROPIC_DEFAULT_HAIKU_MODEL: MiniMax-M2.7
+  API_TIMEOUT_MS: "3000000"
   CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS: "1"
   DISABLE_PROMPT_CACHING: "1"
   CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC: "1"
diff --git a/specs/claude-profile.spec.md b/specs/claude-profile.spec.md
index ef73efa..342a799 100644
--- a/specs/claude-profile.spec.md
+++ b/specs/claude-profile.spec.md
@@ -128,12 +128,19 @@ Plain YAML (no frontmatter). Required field: `model_id`. All other fields are op
 
 ```yaml
 name: minimax-sonnet            # unique identifier, matches filename
-display: MiniMax (Sonnet)       # shown in the interactive picker
-model_id: claude-sonnet-4-20250514  # passed to claude --model
+display: MiniMax (M2.7)         # shown in the interactive picker
+model_id: MiniMax-M2.7          # passed to claude --model
 base_url: https://api.minimax.io/anthropic  # exported as ANTHROPIC_BASE_URL (omit for Anthropic)
-api_key_env: ANTHROPIC_AUTH_TOKEN           # env var name for the API key (omit for Anthropic)
+api_key_env: ANTHROPIC_API_KEY              # env var name for the API key (omit for Anthropic)
 api_key_file: ~/.claude-secrets/minimax-auth-token  # file containing the raw token value
 extra_env:
+  # Claude Code uses separate tier vars; all must point to the same model to prevent Anthropic fallback
+  ANTHROPIC_MODEL: MiniMax-M2.7
+  ANTHROPIC_SMALL_FAST_MODEL: MiniMax-M2.7
+  ANTHROPIC_DEFAULT_SONNET_MODEL: MiniMax-M2.7
+  ANTHROPIC_DEFAULT_OPUS_MODEL: MiniMax-M2.7
+  ANTHROPIC_DEFAULT_HAIKU_MODEL: MiniMax-M2.7
+  API_TIMEOUT_MS: "3000000"
   CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS: "1"
   DISABLE_PROMPT_CACHING: "1"
   CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC: "1"
@@ -249,15 +256,15 @@ $ claude-profile --dryrun oreillyit --mode quick --provider minimax-sonnet
 [dryrun] Mode:            quick
 [dryrun] Mode file:       ~/dev/claude/small-scripts/data/claude-profile/modes/quick.md
 [dryrun] Driver:          sonnet
-[dryrun] Provider:        minimax-sonnet (MiniMax (Sonnet))
-[dryrun] Model ID:        claude-sonnet-4-20250514
+[dryrun] Provider:        minimax-sonnet (MiniMax (M2.7))
+[dryrun] Model ID:        MiniMax-M2.7
 [dryrun] Base URL:        https://api.minimax.io/anthropic
 [dryrun] API key env:     ANTHROPIC_AUTH_TOKEN (from ~/.claude-secrets/minimax-auth-token)
 [dryrun] Project:         <not set, will be picked by CLAUDE.md>
 [dryrun] Time horizon:    <not asked in this mode>
 [dryrun] Async OK:        no
 [dryrun] Autoloop:        none
-[dryrun] Would execute:   claude --model claude-sonnet-4-20250514 --append-system-prompt "<context+mode>"
+[dryrun] Would execute:   claude --model MiniMax-M2.7 --append-system-prompt "<context+mode>"
 [dryrun] No changes made.
 ```
 
diff --git a/tests/test-claude-profile.sh b/tests/test-claude-profile.sh
index 7e9c4c9..e31c3da 100755
--- a/tests/test-claude-profile.sh
+++ b/tests/test-claude-profile.sh
@@ -175,11 +175,11 @@ out=$(run --dryrun oreillyit --mode quick --provider minimax-sonnet)
 rc=$?
 assert_exit_code "minimax dryrun exits 0" 0 "$rc"
 assert_contains "minimax shows provider" "Provider:        minimax-sonnet" "$out"
-assert_contains "minimax shows model ID" "Model ID:        claude-sonnet-4-20250514" "$out"
+assert_contains "minimax shows model ID" "Model ID:        MiniMax-M2.7" "$out"
 assert_contains "minimax shows base URL" "Base URL:        https://api.minimax.io/anthropic" "$out"
-assert_contains "minimax shows API key env" "API key env:     ANTHROPIC_AUTH_TOKEN" "$out"
+assert_contains "minimax shows API key env" "API key env:     ANTHROPIC_API_KEY" "$out"
 assert_contains "minimax references key file" "minimax-auth-token" "$out"
-assert_contains "minimax shows model in exec command" "claude --model claude-sonnet-4-20250514" "$out"
+assert_contains "minimax shows model in exec command" "claude --model MiniMax-M2.7" "$out"
 
 # === Test 12: error — unknown provider ===
 echo