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antigravity: unmapped model IDs 1277 and 1050 reported as model_placeholder_m277 / m50 #1897
Description
Follow-up to #1893. Two more Antigravity model IDs fall through to the 1_000.. placeholder branch in model_name_from_id and are reported with no pricing:
WARN Missing pricing for model_placeholder_m277; cost excludes this model.
WARN Missing pricing for model_placeholder_m50; cost excludes this model.
| ID | Placeholder | Where seen | Tokens |
|---|---|---|---|
1277 |
model_placeholder_m277 |
4 steps in 2 IDE conversations (~/.gemini/antigravity/conversations) |
~187 |
1050 |
model_placeholder_m50 |
2 steps in 1 conversation (~/.gemini/antigravity-ide/conversations) |
~120 |
I could not identify the models. Unlike 1417, the IDs only show up in the model_id field of individual steps.metadata rows, with no model name stored next to them. Those steps are tool calls (view_file, run_command). The conversations' own gen_metadata model is something else: MODEL_PLACEHOLDER_M71 / Gemini 3.6 Flash (High) and MODEL_PLACEHOLDER_M36 / Gemini 3.1 Pro (Low). So these look like a helper or secondary model used on certain steps, not the chat model.
ccusage 20.0.33 on macOS. The cost impact here is negligible. I'm reporting them so the IDs can be mapped if they're known from the agy side.
Activity
pullfrog commentedon Oct 15, 2026
github-actions commentedon Oct 15, 2026
Pullfrog triage: priority:low
Kind: bug
Maintenance fit: needs review
Confidence: medium
Pullfrog was not highly confident; maintainer review is required. IDs 1277 and 1050 fall through to placeholder names with missing pricing warnings, matching prior bug pattern. Correct model mapping is unknown, author reports negligible impact around 300 tokens on helper steps, so maintainer review is needed to identify models.
Decision: left open for maintainer review.