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Ollama Ollama Updated May 17, 2026

Ollama Codex App integration ignores model num_ctx setting, generates excessively large context_window causing severe slowdown

Developers running local Ollama models via Codex App notice extreme slowdowns; root cause is Codex App not reading model parameter num_ctx and defaulting to max context sizes Includes evidence for Ollama troubleshooting demand.

Codex App sends requests with context_window=128000-262144 tokens instead of model's configured num_ctx (e.g., 32768) — causing severe generation slowdowns on local models
Ollama Ollama Updated May 16, 2026

Ollama Model Returning Empty String from ollama.generate()

Fix Ollama model returning empty string response from generate() API call despite model being installed Includes evidence for Ollama troubleshooting demand.

Ollama model returning empty string from ollama.generate() — model installed but generate() returns empty output
Ollama Ollama Updated May 16, 2026

Ollama Model Does Not Support Tools — llama3:latest invalid_request_error

Fix Ollama model not supporting tools error — resolve invalid_request_error for tool-calling with local models Includes evidence for Ollama troubleshooting demand.

BadRequestError: Error code: 400 — registry.ollama.ai/library/llama3:latest does not support tools
Ollama Ollama Updated May 16, 2026

Ollama OOM crash during GGUF metadata parsing in v0.24.0

Fix Ollama server crashing with OOM during GGUF metadata parsing after upgrading to v0.24.0 Includes evidence for Ollama troubleshooting demand.

runtime: out of memory during GGUF metadata parsing (readString/n_kv allocation) in Ollama v0.24.0
Ollama Ollama Updated May 15, 2026

Ollama gemma4 repetition loop during constrained JSON generation

Fix Ollama gemma4 repetition loop when generating structured JSON with format parameter Includes evidence for Ollama troubleshooting demand.

Word repetition loop fills num_predict budget, JSON unterminated — repeat_penalty has no effect
Ollama Ollama Updated May 15, 2026

Ollama think=false breaks format structured output silently

Fix Ollama structured output being ignored when think=false is set Includes evidence for Ollama troubleshooting demand.

think=false with format parameter causes format constraint to be silently ignored — outputs plain text instead of JSON
Ollama Ollama Updated May 15, 2026

Ollama Embedding EOF Server Error 500 — Fix Guide

Fix Ollama embedding endpoint returning 500 Internal Server Error with EOF when generating embeddings Includes evidence for Ollama troubleshooting demand.

Server error: POST http://localhost:11434/api/embeddings resulted in a 500 Internal Server Error — EOF