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chat : clarify the meaning of reasoning_format (#15408)

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* chat : clarify the meaning of reasoning_format

* add link to this PR
This commit is contained in:
Xuan-Son Nguyen
2025-08-19 10:29:36 +02:00
committed by GitHub
parent 9d262f4bad
commit e9288e8869
3 changed files with 6 additions and 4 deletions
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1
common/chat.cpp
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@@ -632,7 +632,6 @@ const char * common_reasoning_format_name(common_reasoning_format format) {
case COMMON_REASONING_FORMAT_AUTO: return "auto";
case COMMON_REASONING_FORMAT_DEEPSEEK: return "deepseek";
case COMMON_REASONING_FORMAT_DEEPSEEK_LEGACY: return "deepseek-legacy";
case COMMON_REASONING_FORMAT_GRANITE: return "granite";
default:
throw std::runtime_error("Unknown reasoning format");
}

7
common/common.h
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@@ -239,12 +239,15 @@ struct common_params_diffusion {
bool add_gumbel_noise = false; // add gumbel noise to the logits if temp > 0.0
};
// reasoning API response format (not to be confused as chat template's reasoning format)
enum common_reasoning_format {
COMMON_REASONING_FORMAT_NONE,
COMMON_REASONING_FORMAT_AUTO,
COMMON_REASONING_FORMAT_AUTO, // Same as deepseek, using `message.reasoning_content`
COMMON_REASONING_FORMAT_DEEPSEEK_LEGACY, // Extract thinking tag contents and return as `message.reasoning_content`, or leave inline in <think> tags in stream mode
COMMON_REASONING_FORMAT_DEEPSEEK, // Extract thinking tag contents and return as `message.reasoning_content`, including in streaming deltas.
COMMON_REASONING_FORMAT_GRANITE, // Extract thinking tag contents and return as `message.reasoning_content`, including in streaming deltas.
// do not extend this enum unless you absolutely have to
// in most cases, use COMMON_REASONING_FORMAT_AUTO
// see: https://github.com/ggml-org/llama.cpp/pull/15408
};

2
tests/test-chat.cpp
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@@ -1408,7 +1408,7 @@ static void test_template_output_parsers() {
/* is_partial= */ false,
{
/* .format = */ COMMON_CHAT_FORMAT_GRANITE,
/* .reasoning_format = */ COMMON_REASONING_FORMAT_GRANITE,
/* .reasoning_format = */ COMMON_REASONING_FORMAT_DEEPSEEK,
}));
// Test parsing tool calls